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Finding the Fourth Proportional to 234,453.12, 351,709.47 and 74,471.97

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Solution

The fourth proportional to 234,453.12, 351,709.47 and 74,471.97 is: 111,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,453.12 : 351,709.47 = 74,471.97 : x
  2. Step 2: Convert to fraction form
    234,453.12/351,709.47 = 74,471.97/x
  3. Step 3: Cross multiply
    234,453.12x = 351,709.47 × 74,471.97
  4. Step 4: Simplify right side
    234,453.12x = 26,192,497,098.56
  5. Step 5: Solve for x
    x = 26,192,497,098.56/234,453.12
  6. Step 6: Final answer
    x = 111,717.42

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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.