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Finding the Fourth Proportional to 234,709.71, 352,049.98 and 74,781.69

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Solution

The fourth proportional to 234,709.71, 352,049.98 and 74,781.69 is: 112,167.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,709.71 : 352,049.98 = 74,781.69 : x
  2. Step 2: Convert to fraction form
    234,709.71/352,049.98 = 74,781.69/x
  3. Step 3: Cross multiply
    234,709.71x = 352,049.98 × 74,781.69
  4. Step 4: Simplify right side
    234,709.71x = 26,326,891,101.94
  5. Step 5: Solve for x
    x = 26,326,891,101.94/234,709.71
  6. Step 6: Final answer
    x = 112,167.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.