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Finding the Fourth Proportional to 168,791.76, 232,747.15 and 108,339.57

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Solution

The fourth proportional to 168,791.76, 232,747.15 and 108,339.57 is: 149,389.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,791.76 : 232,747.15 = 108,339.57 : x
  2. Step 2: Convert to fraction form
    168,791.76/232,747.15 = 108,339.57/x
  3. Step 3: Cross multiply
    168,791.76x = 232,747.15 × 108,339.57
  4. Step 4: Simplify right side
    168,791.76x = 25,215,726,149.73
  5. Step 5: Solve for x
    x = 25,215,726,149.73/168,791.76
  6. Step 6: Final answer
    x = 149,389.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.