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Finding the Fourth Proportional to 60,701.54, 83,781.52 and 39,443.90

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Solution

The fourth proportional to 60,701.54, 83,781.52 and 39,443.90 is: 54,441.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,701.54 : 83,781.52 = 39,443.90 : x
  2. Step 2: Convert to fraction form
    60,701.54/83,781.52 = 39,443.90/x
  3. Step 3: Cross multiply
    60,701.54x = 83,781.52 × 39,443.90
  4. Step 4: Simplify right side
    60,701.54x = 3,304,669,896.73
  5. Step 5: Solve for x
    x = 3,304,669,896.73/60,701.54
  6. Step 6: Final answer
    x = 54,441.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.