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Finding the Fourth Proportional to 54,502.40, 81,753.60 and 51,440.60

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Solution

The fourth proportional to 54,502.40, 81,753.60 and 51,440.60 is: 77,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,502.40 : 81,753.60 = 51,440.60 : x
  2. Step 2: Convert to fraction form
    54,502.40/81,753.60 = 51,440.60/x
  3. Step 3: Cross multiply
    54,502.40x = 81,753.60 × 51,440.60
  4. Step 4: Simplify right side
    54,502.40x = 4,205,454,236.16
  5. Step 5: Solve for x
    x = 4,205,454,236.16/54,502.40
  6. Step 6: Final answer
    x = 77,160.90

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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.