What is the fourth proportional to 336, 288 and 161? from Quanti

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Ratio and Proportion

Multiple Choice Questions

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81.
What is the fourth proportional to 336, 288 and 161?

184

115

138

134

C.

138

Fourth Proportional = $bc over straight a$
$space equals space open parentheses fraction numerator 288 space cross times space 161 over denominator 336 end fraction close parentheses equals space 138$

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