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Finding the Fourth Proportional to 54,135.63, 81,006.62 and 44,687.79

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Solution

The fourth proportional to 54,135.63, 81,006.62 and 44,687.79 is: 66,869.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,135.63 : 81,006.62 = 44,687.79 : x
  2. Step 2: Convert to fraction form
    54,135.63/81,006.62 = 44,687.79/x
  3. Step 3: Cross multiply
    54,135.63x = 81,006.62 × 44,687.79
  4. Step 4: Simplify right side
    54,135.63x = 3,620,006,599.73
  5. Step 5: Solve for x
    x = 3,620,006,599.73/54,135.63
  6. Step 6: Final answer
    x = 66,869.21

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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.