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Finding the Fourth Proportional to 80,990.62, 111,766.27 and 44,692.41

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Solution

The fourth proportional to 80,990.62, 111,766.27 and 44,692.41 is: 61,675.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,990.62 : 111,766.27 = 44,692.41 : x
  2. Step 2: Convert to fraction form
    80,990.62/111,766.27 = 44,692.41/x
  3. Step 3: Cross multiply
    80,990.62x = 111,766.27 × 44,692.41
  4. Step 4: Simplify right side
    80,990.62x = 4,995,103,963.01
  5. Step 5: Solve for x
    x = 4,995,103,963.01/80,990.62
  6. Step 6: Final answer
    x = 61,675.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.