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Finding the Fourth Proportional to 54,520.52, 81,801.03 and 37,871.78

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Solution

The fourth proportional to 54,520.52, 81,801.03 and 37,871.78 is: 56,821.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,520.52 : 81,801.03 = 37,871.78 : x
  2. Step 2: Convert to fraction form
    54,520.52/81,801.03 = 37,871.78/x
  3. Step 3: Cross multiply
    54,520.52x = 81,801.03 × 37,871.78
  4. Step 4: Simplify right side
    54,520.52x = 3,097,950,611.93
  5. Step 5: Solve for x
    x = 3,097,950,611.93/54,520.52
  6. Step 6: Final answer
    x = 56,821.74

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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.