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Finding the Fourth Proportional to 359,911.68, 539,275.14 and 123,124.92

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Solution

The fourth proportional to 359,911.68, 539,275.14 and 123,124.92 is: 184,484.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,911.68 : 539,275.14 = 123,124.92 : x
  2. Step 2: Convert to fraction form
    359,911.68/539,275.14 = 123,124.92/x
  3. Step 3: Cross multiply
    359,911.68x = 539,275.14 × 123,124.92
  4. Step 4: Simplify right side
    359,911.68x = 66,398,208,470.49
  5. Step 5: Solve for x
    x = 66,398,208,470.49/359,911.68
  6. Step 6: Final answer
    x = 184,484.73

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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.