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Finding the Fourth Proportional to 267,247.72, 400,908.38 and 89,805.48

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Solution

The fourth proportional to 267,247.72, 400,908.38 and 89,805.48 is: 134,720.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,247.72 : 400,908.38 = 89,805.48 : x
  2. Step 2: Convert to fraction form
    267,247.72/400,908.38 = 89,805.48/x
  3. Step 3: Cross multiply
    267,247.72x = 400,908.38 × 89,805.48
  4. Step 4: Simplify right side
    267,247.72x = 36,003,769,501.92
  5. Step 5: Solve for x
    x = 36,003,769,501.92/267,247.72
  6. Step 6: Final answer
    x = 134,720.59

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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.