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Finding the Fourth Proportional to 54,266.70, 81,440.55 and 27,957.90

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Solution

The fourth proportional to 54,266.70, 81,440.55 and 27,957.90 is: 41,957.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,266.70 : 81,440.55 = 27,957.90 : x
  2. Step 2: Convert to fraction form
    54,266.70/81,440.55 = 27,957.90/x
  3. Step 3: Cross multiply
    54,266.70x = 81,440.55 × 27,957.90
  4. Step 4: Simplify right side
    54,266.70x = 2,276,906,752.85
  5. Step 5: Solve for x
    x = 2,276,906,752.85/54,266.70
  6. Step 6: Final answer
    x = 41,957.72

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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.