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Finding the Fourth Proportional to 267,910.70, 401,720.05 and 80,897.90

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Solution

The fourth proportional to 267,910.70, 401,720.05 and 80,897.90 is: 121,302.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,910.70 : 401,720.05 = 80,897.90 : x
  2. Step 2: Convert to fraction form
    267,910.70/401,720.05 = 80,897.90/x
  3. Step 3: Cross multiply
    267,910.70x = 401,720.05 × 80,897.90
  4. Step 4: Simplify right side
    267,910.70x = 32,498,308,432.90
  5. Step 5: Solve for x
    x = 32,498,308,432.90/267,910.70
  6. Step 6: Final answer
    x = 121,302.76

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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.