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Finding the Fourth Proportional to 80,992.08, 111,769.20 and 44,692.68

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Solution

The fourth proportional to 80,992.08, 111,769.20 and 44,692.68 is: 61,675.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,992.08 : 111,769.20 = 44,692.68 : x
  2. Step 2: Convert to fraction form
    80,992.08/111,769.20 = 44,692.68/x
  3. Step 3: Cross multiply
    80,992.08x = 111,769.20 × 44,692.68
  4. Step 4: Simplify right side
    80,992.08x = 4,995,265,089.46
  5. Step 5: Solve for x
    x = 4,995,265,089.46/80,992.08
  6. Step 6: Final answer
    x = 61,675.97

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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.