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Finding the Fourth Proportional to 234,151.92, 323,130.60 and 126,721.89

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Solution

The fourth proportional to 234,151.92, 323,130.60 and 126,721.89 is: 174,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,151.92 : 323,130.60 = 126,721.89 : x
  2. Step 2: Convert to fraction form
    234,151.92/323,130.60 = 126,721.89/x
  3. Step 3: Cross multiply
    234,151.92x = 323,130.60 × 126,721.89
  4. Step 4: Simplify right side
    234,151.92x = 40,947,720,348.83
  5. Step 5: Solve for x
    x = 40,947,720,348.83/234,151.92
  6. Step 6: Final answer
    x = 174,876.72

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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.