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Finding the Fourth Proportional to 267,808.38, 401,432.24 and 90,254.04

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Solution

The fourth proportional to 267,808.38, 401,432.24 and 90,254.04 is: 135,286.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,808.38 : 401,432.24 = 90,254.04 : x
  2. Step 2: Convert to fraction form
    267,808.38/401,432.24 = 90,254.04/x
  3. Step 3: Cross multiply
    267,808.38x = 401,432.24 × 90,254.04
  4. Step 4: Simplify right side
    267,808.38x = 36,230,881,446.25
  5. Step 5: Solve for x
    x = 36,230,881,446.25/267,808.38
  6. Step 6: Final answer
    x = 135,286.59

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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.