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Finding the Fourth Proportional to 71,606.87, 107,246.78 and 34,193.28

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Solution

The fourth proportional to 71,606.87, 107,246.78 and 34,193.28 is: 51,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,606.87 : 107,246.78 = 34,193.28 : x
  2. Step 2: Convert to fraction form
    71,606.87/107,246.78 = 34,193.28/x
  3. Step 3: Cross multiply
    71,606.87x = 107,246.78 × 34,193.28
  4. Step 4: Simplify right side
    71,606.87x = 3,667,119,177.64
  5. Step 5: Solve for x
    x = 3,667,119,177.64/71,606.87
  6. Step 6: Final answer
    x = 51,211.83

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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.