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Finding the Fourth Proportional to 359,691.20, 539,974.20 and 182,106.80

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Solution

The fourth proportional to 359,691.20, 539,974.20 and 182,106.80 is: 273,381.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,691.20 : 539,974.20 = 182,106.80 : x
  2. Step 2: Convert to fraction form
    359,691.20/539,974.20 = 182,106.80/x
  3. Step 3: Cross multiply
    359,691.20x = 539,974.20 × 182,106.80
  4. Step 4: Simplify right side
    359,691.20x = 98,332,973,644.56
  5. Step 5: Solve for x
    x = 98,332,973,644.56/359,691.20
  6. Step 6: Final answer
    x = 273,381.65

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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.