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Finding the Fourth Proportional to 69,364.70, 95,723.62 and 39,151.30

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Solution

The fourth proportional to 69,364.70, 95,723.62 and 39,151.30 is: 54,028.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,364.70 : 95,723.62 = 39,151.30 : x
  2. Step 2: Convert to fraction form
    69,364.70/95,723.62 = 39,151.30/x
  3. Step 3: Cross multiply
    69,364.70x = 95,723.62 × 39,151.30
  4. Step 4: Simplify right side
    69,364.70x = 3,747,704,163.71
  5. Step 5: Solve for x
    x = 3,747,704,163.71/69,364.70
  6. Step 6: Final answer
    x = 54,028.98

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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.