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Finding the Fourth Proportional to 234,398.49, 323,470.31 and 126,969.41

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Solution

The fourth proportional to 234,398.49, 323,470.31 and 126,969.41 is: 175,217.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,398.49 : 323,470.31 = 126,969.41 : x
  2. Step 2: Convert to fraction form
    234,398.49/323,470.31 = 126,969.41/x
  3. Step 3: Cross multiply
    234,398.49x = 323,470.31 × 126,969.41
  4. Step 4: Simplify right side
    234,398.49x = 41,070,832,161.02
  5. Step 5: Solve for x
    x = 41,070,832,161.02/234,398.49
  6. Step 6: Final answer
    x = 175,217.99

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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.