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Finding the Fourth Proportional to 108,616.40, 162,924.60 and 92,213.90

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Solution

The fourth proportional to 108,616.40, 162,924.60 and 92,213.90 is: 138,320.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,616.40 : 162,924.60 = 92,213.90 : x
  2. Step 2: Convert to fraction form
    108,616.40/162,924.60 = 92,213.90/x
  3. Step 3: Cross multiply
    108,616.40x = 162,924.60 × 92,213.90
  4. Step 4: Simplify right side
    108,616.40x = 15,023,912,771.94
  5. Step 5: Solve for x
    x = 15,023,912,771.94/108,616.40
  6. Step 6: Final answer
    x = 138,320.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.