document.write( "Question 1170650: Calculate the present value of the following annuity streams: \r
\n" ); document.write( "\n" ); document.write( "a. $5,000 received each year for 5 years on the last day of each year if your investments pay 6 percent compounded annually.\r
\n" ); document.write( "\n" ); document.write( "b. $5,000 received each quarter for 5 years on the last day of each quarter if your investments pay 6 percent compounded quarterly.
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Algebra.Com's Answer #851122 by CPhill(1959)\"\" \"About 
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Let's calculate the present value of these annuity streams.\r
\n" ); document.write( "\n" ); document.write( "**a) $5,000 received each year for 5 years at 6% compounded annually.**\r
\n" ); document.write( "\n" ); document.write( "This is an ordinary annuity, where payments are made at the end of each period.\r
\n" ); document.write( "\n" ); document.write( "* Payment (PMT) = $5,000
\n" ); document.write( "* Number of periods (n) = 5 years
\n" ); document.write( "* Interest rate per period (r) = 6% or 0.06\r
\n" ); document.write( "\n" ); document.write( "The formula for the present value of an ordinary annuity is:\r
\n" ); document.write( "\n" ); document.write( "PV = PMT * [1 - (1 + r)^-n] / r\r
\n" ); document.write( "\n" ); document.write( "Plugging in the values:\r
\n" ); document.write( "\n" ); document.write( "PV = 5000 * [1 - (1 + 0.06)^-5] / 0.06
\n" ); document.write( "PV = 5000 * [1 - (1.06)^-5] / 0.06
\n" ); document.write( "PV = 5000 * [1 - 0.747258] / 0.06
\n" ); document.write( "PV = 5000 * [0.252742] / 0.06
\n" ); document.write( "PV = 5000 * 4.21236666667
\n" ); document.write( "PV ≈ $21,061.83\r
\n" ); document.write( "\n" ); document.write( "**b) $5,000 received each quarter for 5 years at 6% compounded quarterly.**\r
\n" ); document.write( "\n" ); document.write( "This is also an ordinary annuity, but with quarterly payments.\r
\n" ); document.write( "\n" ); document.write( "* Payment (PMT) = $5,000
\n" ); document.write( "* Number of periods (n) = 5 years * 4 quarters/year = 20 quarters
\n" ); document.write( "* Interest rate per period (r) = 6% / 4 = 1.5% or 0.015\r
\n" ); document.write( "\n" ); document.write( "The formula for the present value of an ordinary annuity is the same:\r
\n" ); document.write( "\n" ); document.write( "PV = PMT * [1 - (1 + r)^-n] / r\r
\n" ); document.write( "\n" ); document.write( "Plugging in the values:\r
\n" ); document.write( "\n" ); document.write( "PV = 5000 * [1 - (1 + 0.015)^-20] / 0.015
\n" ); document.write( "PV = 5000 * [1 - (1.015)^-20] / 0.015
\n" ); document.write( "PV = 5000 * [1 - 0.742470] / 0.015
\n" ); document.write( "PV = 5000 * [0.25753] / 0.015
\n" ); document.write( "PV = 5000 * 17.1686666667
\n" ); document.write( "PV ≈ $85,843.33\r
\n" ); document.write( "\n" ); document.write( "**Answers:**\r
\n" ); document.write( "\n" ); document.write( "a. The present value of the annual annuity is approximately $21,061.83.\r
\n" ); document.write( "\n" ); document.write( "b. The present value of the quarterly annuity is approximately $85,843.33.
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