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Finding the Fourth Proportional to 69,125.67, 103,687.83 and 31,675.12

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Solution

The fourth proportional to 69,125.67, 103,687.83 and 31,675.12 is: 47,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,125.67 : 103,687.83 = 31,675.12 : x
  2. Step 2: Convert to fraction form
    69,125.67/103,687.83 = 31,675.12/x
  3. Step 3: Cross multiply
    69,125.67x = 103,687.83 × 31,675.12
  4. Step 4: Simplify right side
    69,125.67x = 3,284,324,198.57
  5. Step 5: Solve for x
    x = 3,284,324,198.57/69,125.67
  6. Step 6: Final answer
    x = 47,512.37

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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.