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Finding the Fourth Proportional to 60,943.78, 91,229.77 and 54,620.92

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Solution

The fourth proportional to 60,943.78, 91,229.77 and 54,620.92 is: 81,764.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,943.78 : 91,229.77 = 54,620.92 : x
  2. Step 2: Convert to fraction form
    60,943.78/91,229.77 = 54,620.92/x
  3. Step 3: Cross multiply
    60,943.78x = 91,229.77 × 54,620.92
  4. Step 4: Simplify right side
    60,943.78x = 4,983,053,968.79
  5. Step 5: Solve for x
    x = 4,983,053,968.79/60,943.78
  6. Step 6: Final answer
    x = 81,764.77

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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.