Question 665499
You want to find ( dollars ) / ( mile ) so you 
can multiply ( miles ) x ( dollars ) / (mile )
and come up with dollars.
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( dollars / gallon ) / ( miles / gallon ) = dollars / mile )
{{{ ( 4 / 1 ) / ( 12 / 1 ) = 1/3 }}} dollars / mile, and
{{{ 176*(1/3) = 58.67 }}}
You need $58.67 for gas
check:
{{{ 58.67 / 4 = 14.6675 }}} gallons
{{{ 12*14.6675 = 176.01 }}} miles
OK