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Finding the Fourth Proportional to 234,262.70, 323,278.61 and 126,831.86

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Solution

The fourth proportional to 234,262.70, 323,278.61 and 126,831.86 is: 175,025.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,262.70 : 323,278.61 = 126,831.86 : x
  2. Step 2: Convert to fraction form
    234,262.70/323,278.61 = 126,831.86/x
  3. Step 3: Cross multiply
    234,262.70x = 323,278.61 × 126,831.86
  4. Step 4: Simplify right side
    234,262.70x = 41,002,027,404.51
  5. Step 5: Solve for x
    x = 41,002,027,404.51/234,262.70
  6. Step 6: Final answer
    x = 175,025.85

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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.