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Finding the Fourth Proportional to 71,020.20, 106,530.30 and 44,754.60

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Solution

The fourth proportional to 71,020.20, 106,530.30 and 44,754.60 is: 67,131.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,020.20 : 106,530.30 = 44,754.60 : x
  2. Step 2: Convert to fraction form
    71,020.20/106,530.30 = 44,754.60/x
  3. Step 3: Cross multiply
    71,020.20x = 106,530.30 × 44,754.60
  4. Step 4: Simplify right side
    71,020.20x = 4,767,720,964.38
  5. Step 5: Solve for x
    x = 4,767,720,964.38/71,020.20
  6. Step 6: Final answer
    x = 67,131.90

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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.