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Finding the Fourth Proportional to 267,487.92, 401,231.88 and 89,995.86

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Solution

The fourth proportional to 267,487.92, 401,231.88 and 89,995.86 is: 134,993.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,487.92 : 401,231.88 = 89,995.86 : x
  2. Step 2: Convert to fraction form
    267,487.92/401,231.88 = 89,995.86/x
  3. Step 3: Cross multiply
    267,487.92x = 401,231.88 × 89,995.86
  4. Step 4: Simplify right side
    267,487.92x = 36,109,208,100.02
  5. Step 5: Solve for x
    x = 36,109,208,100.02/267,487.92
  6. Step 6: Final answer
    x = 134,993.79

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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.