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Finding the Fourth Proportional to 359,720.80, 539,454.52 and 119,769.55

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Solution

The fourth proportional to 359,720.80, 539,454.52 and 119,769.55 is: 179,612.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,720.80 : 539,454.52 = 119,769.55 : x
  2. Step 2: Convert to fraction form
    359,720.80/539,454.52 = 119,769.55/x
  3. Step 3: Cross multiply
    359,720.80x = 539,454.52 × 119,769.55
  4. Step 4: Simplify right side
    359,720.80x = 64,610,225,105.87
  5. Step 5: Solve for x
    x = 64,610,225,105.87/359,720.80
  6. Step 6: Final answer
    x = 179,612.15

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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.