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Finding the Fourth Proportional to 267,596.82, 401,398.11 and 80,609.94

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Solution

The fourth proportional to 267,596.82, 401,398.11 and 80,609.94 is: 120,915.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,596.82 : 401,398.11 = 80,609.94 : x
  2. Step 2: Convert to fraction form
    267,596.82/401,398.11 = 80,609.94/x
  3. Step 3: Cross multiply
    267,596.82x = 401,398.11 × 80,609.94
  4. Step 4: Simplify right side
    267,596.82x = 32,356,677,563.21
  5. Step 5: Solve for x
    x = 32,356,677,563.21/267,596.82
  6. Step 6: Final answer
    x = 120,915.78

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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.