document.write( "Question 1207266: A father is planning a savings program to put his daughter through college.
\n" ); document.write( "His daughter is now 13 years old. She plans to enroll at the university in five
\n" ); document.write( "years, and it should take her four years to complete her education. Currently,
\n" ); document.write( "the cost per year (for everything—food, clothing, tuition, books, transportation, and so forth) is $12,500, but these costs are expected to increase by
\n" ); document.write( "5 percent—the inflation rate—each year. The daughter recently received
\n" ); document.write( "$7,500 from her grandfather’s estate; this money, which was invested in a
\n" ); document.write( "mutual fund that pays 8 percent interest compounded annually, will be used
\n" ); document.write( "to help meet the costs of the daughter’s education. The rest of the costs will
\n" ); document.write( "be met by money that the father will deposit in a savings account. He will
\n" ); document.write( "make equal deposits to the account in each year beginning today until his
\n" ); document.write( "daughter starts college—that is, he will make a total of six deposits. These
\n" ); document.write( "deposits will also earn 8 percent interest.
\n" ); document.write( "a. What will be the present value of the cost of four years of education at the
\n" ); document.write( "time the daughter turns 18? (Hint: Calculate the cost [at 5 percent inflation,
\n" ); document.write( "or growth] for each year of her education, discount three of these costs back
\n" ); document.write( "[at 8 percent] to the year in which she turns 18, then sum the four costs,
\n" ); document.write( "which include the cost of the first year.)
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Algebra.Com's Answer #845041 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
the annual cost of college is inflating at 5% per year.
\n" ); document.write( "she is now 13.
\n" ); document.write( "she will be 18 when she starts college.
\n" ); document.write( "18 - 15 = 5 year from now.\r
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\n" ); document.write( "\n" ); document.write( "the cost of college today is 12500 a year.
\n" ); document.write( "5 years from now it will be 12500 * 1.05 ^ 5 = 15953.51953
\n" ); document.write( "6 years from now it will be 12500 * 1.05 ^ 6 = 16751.19551
\n" ); document.write( "7 years from mow it will be 12500 * 1.05 ^ 7 = 17588.75528
\n" ); document.write( "8 years from now it will be 12500 * 1.05 ^ 8 = 18468.19305\r
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\n" ); document.write( "\n" ); document.write( "the present value of those college costs will be the 5th year expense plus the 6th year expense / 1.08 plus the 7th year expense / 1.08 ^ 2 plus the 8th year expense / 1.08 ^ 3 = 61204.05552.\r
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\n" ); document.write( "\n" ); document.write( "that's the amount of money she would need to have by the start of college which is at the end of year 5.
\n" ); document.write( "note that end of year 5 is the beginning of year 6.\r
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\n" ); document.write( "\n" ); document.write( "she needs to have 61204.05552 by the end of year 5.
\n" ); document.write( "that's the present value of her college expenses for 4 years.\r
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\n" ); document.write( "\n" ); document.write( "she has 7500 in savings today that is earning at the rate of 8% per year.
\n" ); document.write( "at the end of year 5, that money will be equal to 7500 * 1.08 ^ 5 = 11019.96058.\r
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\n" ); document.write( "\n" ); document.write( "the present value of her college costs minus that will be equal to 61204.05552 minus 11019.96058 = 50184.09494.\r
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\n" ); document.write( "\n" ); document.write( "that's how much her father needs to each year starting at end of year 0 and ending at end of year 5.\r
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\n" ); document.write( "\n" ); document.write( "end of year 0 is now.\r
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\n" ); document.write( "\n" ); document.write( "the amount he needs to deposit each year is equal to 6334.133598.
\n" ); document.write( "if he does that, he will have 50184.09495 at the end of the 6 payment investment period.\r
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\n" ); document.write( "\n" ); document.write( "50184.09495 plus 11019.96058 in savings adds up to 61204.05552 which is the present value of her college costs at the end of year 5.\r
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\n" ); document.write( "\n" ); document.write( "the spreadsheet page shown below has all the calculations in it.\r
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\n" ); document.write( "\n" ); document.write( "i haven't had time to explain this as fully as i would like, but i will be available to answer any questions you might have regarding my solution and how it was derived.\r
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\n" ); document.write( "\n" ); document.write( "the calculation of the payments for the future value required for the father's investment is shown below.\r
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\n" ); document.write( "\n" ); document.write( "that display is from the financial calculator at https://arachnoid.com/finance/\r
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