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Finding the Fourth Proportional to 234,349.71, 323,400.78 and 126,917.25

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Solution

The fourth proportional to 234,349.71, 323,400.78 and 126,917.25 is: 175,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,349.71 : 323,400.78 = 126,917.25 : x
  2. Step 2: Convert to fraction form
    234,349.71/323,400.78 = 126,917.25/x
  3. Step 3: Cross multiply
    234,349.71x = 323,400.78 × 126,917.25
  4. Step 4: Simplify right side
    234,349.71x = 41,045,137,645.46
  5. Step 5: Solve for x
    x = 41,045,137,645.46/234,349.71
  6. Step 6: Final answer
    x = 175,144.82

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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.