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Finding the Fourth Proportional to 57,872.53, 87,242.56 and 54,014.74

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Solution

The fourth proportional to 57,872.53, 87,242.56 and 54,014.74 is: 81,426.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,872.53 : 87,242.56 = 54,014.74 : x
  2. Step 2: Convert to fraction form
    57,872.53/87,242.56 = 54,014.74/x
  3. Step 3: Cross multiply
    57,872.53x = 87,242.56 × 54,014.74
  4. Step 4: Simplify right side
    57,872.53x = 4,712,383,943.47
  5. Step 5: Solve for x
    x = 4,712,383,943.47/57,872.53
  6. Step 6: Final answer
    x = 81,426.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.