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Finding the Fourth Proportional to 359,747.49, 539,336.58 and 135,082.90

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Solution

The fourth proportional to 359,747.49, 539,336.58 and 135,082.90 is: 202,517.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,747.49 : 539,336.58 = 135,082.90 : x
  2. Step 2: Convert to fraction form
    359,747.49/539,336.58 = 135,082.90/x
  3. Step 3: Cross multiply
    359,747.49x = 539,336.58 × 135,082.90
  4. Step 4: Simplify right side
    359,747.49x = 72,855,151,083.36
  5. Step 5: Solve for x
    x = 72,855,151,083.36/359,747.49
  6. Step 6: Final answer
    x = 202,517.47

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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.