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Finding the Fourth Proportional to 267,235.20, 400,852.80 and 89,723.70

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Solution

The fourth proportional to 267,235.20, 400,852.80 and 89,723.70 is: 134,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,235.20 : 400,852.80 = 89,723.70 : x
  2. Step 2: Convert to fraction form
    267,235.20/400,852.80 = 89,723.70/x
  3. Step 3: Cross multiply
    267,235.20x = 400,852.80 × 89,723.70
  4. Step 4: Simplify right side
    267,235.20x = 35,965,996,371.36
  5. Step 5: Solve for x
    x = 35,965,996,371.36/267,235.20
  6. Step 6: Final answer
    x = 134,585.55

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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.