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Finding the Fourth Proportional to 83,168.29, 124,836.54 and 73,740.97

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Solution

The fourth proportional to 83,168.29, 124,836.54 and 73,740.97 is: 110,686.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,168.29 : 124,836.54 = 73,740.97 : x
  2. Step 2: Convert to fraction form
    83,168.29/124,836.54 = 73,740.97/x
  3. Step 3: Cross multiply
    83,168.29x = 124,836.54 × 73,740.97
  4. Step 4: Simplify right side
    83,168.29x = 9,205,567,551.04
  5. Step 5: Solve for x
    x = 9,205,567,551.04/83,168.29
  6. Step 6: Final answer
    x = 110,686.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.