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Finding the Fourth Proportional to 60,601.80, 90,918.90 and 54,073.20

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Solution

The fourth proportional to 60,601.80, 90,918.90 and 54,073.20 is: 81,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,601.80 : 90,918.90 = 54,073.20 : x
  2. Step 2: Convert to fraction form
    60,601.80/90,918.90 = 54,073.20/x
  3. Step 3: Cross multiply
    60,601.80x = 90,918.90 × 54,073.20
  4. Step 4: Simplify right side
    60,601.80x = 4,916,275,863.48
  5. Step 5: Solve for x
    x = 4,916,275,863.48/60,601.80
  6. Step 6: Final answer
    x = 81,124.25

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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.