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Finding the Fourth Proportional to 60,676.16, 90,539.54 and 54,371.97

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Solution

The fourth proportional to 60,676.16, 90,539.54 and 54,371.97 is: 81,132.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,676.16 : 90,539.54 = 54,371.97 : x
  2. Step 2: Convert to fraction form
    60,676.16/90,539.54 = 54,371.97/x
  3. Step 3: Cross multiply
    60,676.16x = 90,539.54 × 54,371.97
  4. Step 4: Simplify right side
    60,676.16x = 4,922,813,084.73
  5. Step 5: Solve for x
    x = 4,922,813,084.73/60,676.16
  6. Step 6: Final answer
    x = 81,132.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.