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Finding the Fourth Proportional to 359,748.49, 539,338.08 and 135,083.90

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Solution

The fourth proportional to 359,748.49, 539,338.08 and 135,083.90 is: 202,518.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,748.49 : 539,338.08 = 135,083.90 : x
  2. Step 2: Convert to fraction form
    359,748.49/539,338.08 = 135,083.90/x
  3. Step 3: Cross multiply
    359,748.49x = 539,338.08 × 135,083.90
  4. Step 4: Simplify right side
    359,748.49x = 72,855,891,264.91
  5. Step 5: Solve for x
    x = 72,855,891,264.91/359,748.49
  6. Step 6: Final answer
    x = 202,518.96

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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.