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Finding the Fourth Proportional to 267,876.10, 401,814.15 and 80,863.30

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Solution

The fourth proportional to 267,876.10, 401,814.15 and 80,863.30 is: 121,294.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,876.10 : 401,814.15 = 80,863.30 : x
  2. Step 2: Convert to fraction form
    267,876.10/401,814.15 = 80,863.30/x
  3. Step 3: Cross multiply
    267,876.10x = 401,814.15 × 80,863.30
  4. Step 4: Simplify right side
    267,876.10x = 32,492,018,155.70
  5. Step 5: Solve for x
    x = 32,492,018,155.70/267,876.10
  6. Step 6: Final answer
    x = 121,294.95

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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.