Finding the Fourth Proportional to 122,935.52, 169,654.40 and 75,188
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Solution
The fourth proportional to 122,935.52, 169,654.40 and 75,188 is: 103,761.51
Step by Step Solution
- Step 1: Write the proportion equation
122,935.52 : 169,654.40 = 75,188 : x - Step 2: Convert to fraction form
122,935.52/169,654.40 = 75,188/x - Step 3: Cross multiply
122,935.52x = 169,654.40 × 75,188 - Step 4: Simplify right side
122,935.52x = 12,755,975,027.20 - Step 5: Solve for x
x = 12,755,975,027.20/122,935.52 - Step 6: Final answer
x = 103,761.51
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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.