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Finding the Fourth Proportional to 89,586.87, 134,399.75 and 27,255.75

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Solution

The fourth proportional to 89,586.87, 134,399.75 and 27,255.75 is: 40,889.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,586.87 : 134,399.75 = 27,255.75 : x
  2. Step 2: Convert to fraction form
    89,586.87/134,399.75 = 27,255.75/x
  3. Step 3: Cross multiply
    89,586.87x = 134,399.75 × 27,255.75
  4. Step 4: Simplify right side
    89,586.87x = 3,663,165,849.78
  5. Step 5: Solve for x
    x = 3,663,165,849.78/89,586.87
  6. Step 6: Final answer
    x = 40,889.54

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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.