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Finding the Fourth Proportional to 54,542.67, 81,815.01 and 17,101.90

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Solution

The fourth proportional to 54,542.67, 81,815.01 and 17,101.90 is: 25,653.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,542.67 : 81,815.01 = 17,101.90 : x
  2. Step 2: Convert to fraction form
    54,542.67/81,815.01 = 17,101.90/x
  3. Step 3: Cross multiply
    54,542.67x = 81,815.01 × 17,101.90
  4. Step 4: Simplify right side
    54,542.67x = 1,399,192,119.52
  5. Step 5: Solve for x
    x = 1,399,192,119.52/54,542.67
  6. Step 6: Final answer
    x = 25,653.17

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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.