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Finding the Fourth Proportional to 71,013.96, 106,440.01 and 44,372.25

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Solution

The fourth proportional to 71,013.96, 106,440.01 and 44,372.25 is: 66,507.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,013.96 : 106,440.01 = 44,372.25 : x
  2. Step 2: Convert to fraction form
    71,013.96/106,440.01 = 44,372.25/x
  3. Step 3: Cross multiply
    71,013.96x = 106,440.01 × 44,372.25
  4. Step 4: Simplify right side
    71,013.96x = 4,722,982,733.72
  5. Step 5: Solve for x
    x = 4,722,982,733.72/71,013.96
  6. Step 6: Final answer
    x = 66,507.81

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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.