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Finding the Fourth Proportional to 359,861.71, 539,793.24 and 93,621.79

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Solution

The fourth proportional to 359,861.71, 539,793.24 and 93,621.79 is: 140,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,861.71 : 539,793.24 = 93,621.79 : x
  2. Step 2: Convert to fraction form
    359,861.71/539,793.24 = 93,621.79/x
  3. Step 3: Cross multiply
    359,861.71x = 539,793.24 × 93,621.79
  4. Step 4: Simplify right side
    359,861.71x = 50,536,409,358.70
  5. Step 5: Solve for x
    x = 50,536,409,358.70/359,861.71
  6. Step 6: Final answer
    x = 140,432.86

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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.