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Finding the Fourth Proportional to 359,612.97, 539,507.08 and 119,726.40

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Solution

The fourth proportional to 359,612.97, 539,507.08 and 119,726.40 is: 179,618.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,612.97 : 539,507.08 = 119,726.40 : x
  2. Step 2: Convert to fraction form
    359,612.97/539,507.08 = 119,726.40/x
  3. Step 3: Cross multiply
    359,612.97x = 539,507.08 × 119,726.40
  4. Step 4: Simplify right side
    359,612.97x = 64,593,242,635.72
  5. Step 5: Solve for x
    x = 64,593,242,635.72/359,612.97
  6. Step 6: Final answer
    x = 179,618.78

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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.