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Finding the Fourth Proportional to 80,974.68, 111,745.21 and 45,167.01

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Solution

The fourth proportional to 80,974.68, 111,745.21 and 45,167.01 is: 62,330.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,974.68 : 111,745.21 = 45,167.01 : x
  2. Step 2: Convert to fraction form
    80,974.68/111,745.21 = 45,167.01/x
  3. Step 3: Cross multiply
    80,974.68x = 111,745.21 × 45,167.01
  4. Step 4: Simplify right side
    80,974.68x = 5,047,197,017.52
  5. Step 5: Solve for x
    x = 5,047,197,017.52/80,974.68
  6. Step 6: Final answer
    x = 62,330.56

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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.