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Finding the Fourth Proportional to 234,332.91, 323,378.91 and 126,902.61

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Solution

The fourth proportional to 234,332.91, 323,378.91 and 126,902.61 is: 175,125.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,332.91 : 323,378.91 = 126,902.61 : x
  2. Step 2: Convert to fraction form
    234,332.91/323,378.91 = 126,902.61/x
  3. Step 3: Cross multiply
    234,332.91x = 323,378.91 × 126,902.61
  4. Step 4: Simplify right side
    234,332.91x = 41,037,627,697.96
  5. Step 5: Solve for x
    x = 41,037,627,697.96/234,332.91
  6. Step 6: Final answer
    x = 175,125.33

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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.