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Finding the Fourth Proportional to 267,371.40, 401,057.10 and 89,819.40

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Solution

The fourth proportional to 267,371.40, 401,057.10 and 89,819.40 is: 134,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,371.40 : 401,057.10 = 89,819.40 : x
  2. Step 2: Convert to fraction form
    267,371.40/401,057.10 = 89,819.40/x
  3. Step 3: Cross multiply
    267,371.40x = 401,057.10 × 89,819.40
  4. Step 4: Simplify right side
    267,371.40x = 36,022,708,087.74
  5. Step 5: Solve for x
    x = 36,022,708,087.74/267,371.40
  6. Step 6: Final answer
    x = 134,729.10

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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.