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Finding the Fourth Proportional to 57,242.78, 85,850.18 and 44,731.78

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Solution

The fourth proportional to 57,242.78, 85,850.18 and 44,731.78 is: 67,086.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,242.78 : 85,850.18 = 44,731.78 : x
  2. Step 2: Convert to fraction form
    57,242.78/85,850.18 = 44,731.78/x
  3. Step 3: Cross multiply
    57,242.78x = 85,850.18 × 44,731.78
  4. Step 4: Simplify right side
    57,242.78x = 3,840,231,094.18
  5. Step 5: Solve for x
    x = 3,840,231,094.18/57,242.78
  6. Step 6: Final answer
    x = 67,086.73

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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.