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Finding the Fourth Proportional to 120,751.92, 166,629.78 and 67,037.04

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Solution

The fourth proportional to 120,751.92, 166,629.78 and 67,037.04 is: 92,506.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,751.92 : 166,629.78 = 67,037.04 : x
  2. Step 2: Convert to fraction form
    120,751.92/166,629.78 = 67,037.04/x
  3. Step 3: Cross multiply
    120,751.92x = 166,629.78 × 67,037.04
  4. Step 4: Simplify right side
    120,751.92x = 11,170,367,227.05
  5. Step 5: Solve for x
    x = 11,170,367,227.05/120,751.92
  6. Step 6: Final answer
    x = 92,506.75

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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.