Finding the Fourth Proportional to 117,046,310.92, 161,394,496.68 and 74,592,651.63
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Solution
The fourth proportional to 117,046,310.92, 161,394,496.68 and 74,592,651.63 is: 102,855,385.81
Step by Step Solution
- Step 1: Write the proportion equation
117,046,310.92 : 161,394,496.68 = 74,592,651.63 : x - Step 2: Convert to fraction form
117,046,310.92/161,394,496.68 = 74,592,651.63/x - Step 3: Cross multiply
117,046,310.92x = 161,394,496.68 × 74,592,651.63 - Step 4: Simplify right side
117,046,310.92x = 12,038,843,466,735,384 - Step 5: Solve for x
x = 12,038,843,466,735,384/117,046,310.92 - Step 6: Final answer
x = 102,855,385.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.