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Finding the Fourth Proportional to 359,551.92, 539,187.78 and 134,789.76

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Solution

The fourth proportional to 359,551.92, 539,187.78 and 134,789.76 is: 202,132.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,551.92 : 539,187.78 = 134,789.76 : x
  2. Step 2: Convert to fraction form
    359,551.92/539,187.78 = 134,789.76/x
  3. Step 3: Cross multiply
    359,551.92x = 539,187.78 × 134,789.76
  4. Step 4: Simplify right side
    359,551.92x = 72,676,991,461.13
  5. Step 5: Solve for x
    x = 72,676,991,461.13/359,551.92
  6. Step 6: Final answer
    x = 202,132.12

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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.