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Finding the Fourth Proportional to 267,919.70, 401,733.55 and 80,906.90

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Solution

The fourth proportional to 267,919.70, 401,733.55 and 80,906.90 is: 121,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,919.70 : 401,733.55 = 80,906.90 : x
  2. Step 2: Convert to fraction form
    267,919.70/401,733.55 = 80,906.90/x
  3. Step 3: Cross multiply
    267,919.70x = 401,733.55 × 80,906.90
  4. Step 4: Simplify right side
    267,919.70x = 32,503,016,156.50
  5. Step 5: Solve for x
    x = 32,503,016,156.50/267,919.70
  6. Step 6: Final answer
    x = 121,316.26

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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.