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Finding the Fourth Proportional to 359,615.70, 539,229.15 and 149,274.90

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Solution

The fourth proportional to 359,615.70, 539,229.15 and 149,274.90 is: 223,831.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,615.70 : 539,229.15 = 149,274.90 : x
  2. Step 2: Convert to fraction form
    359,615.70/539,229.15 = 149,274.90/x
  3. Step 3: Cross multiply
    359,615.70x = 539,229.15 × 149,274.90
  4. Step 4: Simplify right side
    359,615.70x = 80,493,377,443.34
  5. Step 5: Solve for x
    x = 80,493,377,443.34/359,615.70
  6. Step 6: Final answer
    x = 223,831.66

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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.