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Finding the Fourth Proportional to 71,358.30, 106,964.55 and 41,760.90

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Solution

The fourth proportional to 71,358.30, 106,964.55 and 41,760.90 is: 62,598.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,358.30 : 106,964.55 = 41,760.90 : x
  2. Step 2: Convert to fraction form
    71,358.30/106,964.55 = 41,760.90/x
  3. Step 3: Cross multiply
    71,358.30x = 106,964.55 × 41,760.90
  4. Step 4: Simplify right side
    71,358.30x = 4,466,935,876.10
  5. Step 5: Solve for x
    x = 4,466,935,876.10/71,358.30
  6. Step 6: Final answer
    x = 62,598.69

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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.