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Finding the Fourth Proportional to 267,760.53, 401,360.56 and 90,206.19

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Solution

The fourth proportional to 267,760.53, 401,360.56 and 90,206.19 is: 135,214.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,760.53 : 401,360.56 = 90,206.19 : x
  2. Step 2: Convert to fraction form
    267,760.53/401,360.56 = 90,206.19/x
  3. Step 3: Cross multiply
    267,760.53x = 401,360.56 × 90,206.19
  4. Step 4: Simplify right side
    267,760.53x = 36,205,206,708.35
  5. Step 5: Solve for x
    x = 36,205,206,708.35/267,760.53
  6. Step 6: Final answer
    x = 135,214.88

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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.