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Finding the Fourth Proportional to 267,996.85, 401,715.54 and 90,442.69

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Solution

The fourth proportional to 267,996.85, 401,715.54 and 90,442.69 is: 135,569.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,996.85 : 401,715.54 = 90,442.69 : x
  2. Step 2: Convert to fraction form
    267,996.85/401,715.54 = 90,442.69/x
  3. Step 3: Cross multiply
    267,996.85x = 401,715.54 × 90,442.69
  4. Step 4: Simplify right side
    267,996.85x = 36,332,234,052.40
  5. Step 5: Solve for x
    x = 36,332,234,052.40/267,996.85
  6. Step 6: Final answer
    x = 135,569.63

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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.