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Finding the Fourth Proportional to 359,865.72, 539,437.32 and 123,046.43

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Solution

The fourth proportional to 359,865.72, 539,437.32 and 123,046.43 is: 184,446.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,865.72 : 539,437.32 = 123,046.43 : x
  2. Step 2: Convert to fraction form
    359,865.72/539,437.32 = 123,046.43/x
  3. Step 3: Cross multiply
    359,865.72x = 539,437.32 × 123,046.43
  4. Step 4: Simplify right side
    359,865.72x = 66,375,833,737.58
  5. Step 5: Solve for x
    x = 66,375,833,737.58/359,865.72
  6. Step 6: Final answer
    x = 184,446.11

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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.