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Finding the Fourth Proportional to 120,963.52, 166,920.20 and 67,245.26

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Solution

The fourth proportional to 120,963.52, 166,920.20 and 67,245.26 is: 92,793.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,963.52 : 166,920.20 = 67,245.26 : x
  2. Step 2: Convert to fraction form
    120,963.52/166,920.20 = 67,245.26/x
  3. Step 3: Cross multiply
    120,963.52x = 166,920.20 × 67,245.26
  4. Step 4: Simplify right side
    120,963.52x = 11,224,592,581.50
  5. Step 5: Solve for x
    x = 11,224,592,581.50/120,963.52
  6. Step 6: Final answer
    x = 92,793.21

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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.