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Finding the Fourth Proportional to 359,136.59, 538,704.88 and 122,481.32

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Solution

The fourth proportional to 359,136.59, 538,704.88 and 122,481.32 is: 183,721.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,136.59 : 538,704.88 = 122,481.32 : x
  2. Step 2: Convert to fraction form
    359,136.59/538,704.88 = 122,481.32/x
  3. Step 3: Cross multiply
    359,136.59x = 538,704.88 × 122,481.32
  4. Step 4: Simplify right side
    359,136.59x = 65,981,281,793.11
  5. Step 5: Solve for x
    x = 65,981,281,793.11/359,136.59
  6. Step 6: Final answer
    x = 183,721.97

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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.