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Finding the Fourth Proportional to 80,845.92, 111,571.92 and 45,034.56

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Solution

The fourth proportional to 80,845.92, 111,571.92 and 45,034.56 is: 62,150.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,845.92 : 111,571.92 = 45,034.56 : x
  2. Step 2: Convert to fraction form
    80,845.92/111,571.92 = 45,034.56/x
  3. Step 3: Cross multiply
    80,845.92x = 111,571.92 × 45,034.56
  4. Step 4: Simplify right side
    80,845.92x = 5,024,592,325.56
  5. Step 5: Solve for x
    x = 5,024,592,325.56/80,845.92
  6. Step 6: Final answer
    x = 62,150.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.