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Finding the Fourth Proportional to 359,351.20, 538,951.20 and 181,691.20

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Solution

The fourth proportional to 359,351.20, 538,951.20 and 181,691.20 is: 272,498.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,351.20 : 538,951.20 = 181,691.20 : x
  2. Step 2: Convert to fraction form
    359,351.20/538,951.20 = 181,691.20/x
  3. Step 3: Cross multiply
    359,351.20x = 538,951.20 × 181,691.20
  4. Step 4: Simplify right side
    359,351.20x = 97,922,690,269.44
  5. Step 5: Solve for x
    x = 97,922,690,269.44/359,351.20
  6. Step 6: Final answer
    x = 272,498.58

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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.