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Finding the Fourth Proportional to 267,434.80, 401,006.40 and 89,850.40

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Solution

The fourth proportional to 267,434.80, 401,006.40 and 89,850.40 is: 134,726.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,434.80 : 401,006.40 = 89,850.40 : x
  2. Step 2: Convert to fraction form
    267,434.80/401,006.40 = 89,850.40/x
  3. Step 3: Cross multiply
    267,434.80x = 401,006.40 × 89,850.40
  4. Step 4: Simplify right side
    267,434.80x = 36,030,585,442.56
  5. Step 5: Solve for x
    x = 36,030,585,442.56/267,434.80
  6. Step 6: Final answer
    x = 134,726.62

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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.