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Finding the Fourth Proportional to 54,269.70, 81,473.85 and 53,710.80

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Solution

The fourth proportional to 54,269.70, 81,473.85 and 53,710.80 is: 80,634.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,269.70 : 81,473.85 = 53,710.80 : x
  2. Step 2: Convert to fraction form
    54,269.70/81,473.85 = 53,710.80/x
  3. Step 3: Cross multiply
    54,269.70x = 81,473.85 × 53,710.80
  4. Step 4: Simplify right side
    54,269.70x = 4,376,025,662.58
  5. Step 5: Solve for x
    x = 4,376,025,662.58/54,269.70
  6. Step 6: Final answer
    x = 80,634.79

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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.