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Finding the Fourth Proportional to 71,250.56, 106,773.60 and 40,020.08

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Solution

The fourth proportional to 71,250.56, 106,773.60 and 40,020.08 is: 59,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,250.56 : 106,773.60 = 40,020.08 : x
  2. Step 2: Convert to fraction form
    71,250.56/106,773.60 = 40,020.08/x
  3. Step 3: Cross multiply
    71,250.56x = 106,773.60 × 40,020.08
  4. Step 4: Simplify right side
    71,250.56x = 4,273,088,013.89
  5. Step 5: Solve for x
    x = 4,273,088,013.89/71,250.56
  6. Step 6: Final answer
    x = 59,972.69

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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.