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Finding the Fourth Proportional to 226,561.92, 339,820.92 and 68,791.74

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Solution

The fourth proportional to 226,561.92, 339,820.92 and 68,791.74 is: 103,180.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,561.92 : 339,820.92 = 68,791.74 : x
  2. Step 2: Convert to fraction form
    226,561.92/339,820.92 = 68,791.74/x
  3. Step 3: Cross multiply
    226,561.92x = 339,820.92 × 68,791.74
  4. Step 4: Simplify right side
    226,561.92x = 23,376,872,375.20
  5. Step 5: Solve for x
    x = 23,376,872,375.20/226,561.92
  6. Step 6: Final answer
    x = 103,180.94

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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.