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Finding the Fourth Proportional to 80,974.68, 111,745.24 and 45,166.98

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Solution

The fourth proportional to 80,974.68, 111,745.24 and 45,166.98 is: 62,330.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,974.68 : 111,745.24 = 45,166.98 : x
  2. Step 2: Convert to fraction form
    80,974.68/111,745.24 = 45,166.98/x
  3. Step 3: Cross multiply
    80,974.68x = 111,745.24 × 45,166.98
  4. Step 4: Simplify right side
    80,974.68x = 5,047,195,020.18
  5. Step 5: Solve for x
    x = 5,047,195,020.18/80,974.68
  6. Step 6: Final answer
    x = 62,330.53

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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.