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Finding the Fourth Proportional to 87,461.44, 120,692.52 and 49,734.88

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Solution

The fourth proportional to 87,461.44, 120,692.52 and 49,734.88 is: 68,631.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,461.44 : 120,692.52 = 49,734.88 : x
  2. Step 2: Convert to fraction form
    87,461.44/120,692.52 = 49,734.88/x
  3. Step 3: Cross multiply
    87,461.44x = 120,692.52 × 49,734.88
  4. Step 4: Simplify right side
    87,461.44x = 6,002,627,999.10
  5. Step 5: Solve for x
    x = 6,002,627,999.10/87,461.44
  6. Step 6: Final answer
    x = 68,631.71

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1.5x scale

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.