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Finding the Fourth Proportional to 60,678.16, 90,542.52 and 54,373.97

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Solution

The fourth proportional to 60,678.16, 90,542.52 and 54,373.97 is: 81,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,678.16 : 90,542.52 = 54,373.97 : x
  2. Step 2: Convert to fraction form
    60,678.16/90,542.52 = 54,373.97/x
  3. Step 3: Cross multiply
    60,678.16x = 90,542.52 × 54,373.97
  4. Step 4: Simplify right side
    60,678.16x = 4,923,156,266.20
  5. Step 5: Solve for x
    x = 4,923,156,266.20/60,678.16
  6. Step 6: Final answer
    x = 81,135.56

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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.