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Finding the Fourth Proportional to 69,708.70, 96,197.70 and 39,493.90

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Solution

The fourth proportional to 69,708.70, 96,197.70 and 39,493.90 is: 54,501.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,708.70 : 96,197.70 = 39,493.90 : x
  2. Step 2: Convert to fraction form
    69,708.70/96,197.70 = 39,493.90/x
  3. Step 3: Cross multiply
    69,708.70x = 96,197.70 × 39,493.90
  4. Step 4: Simplify right side
    69,708.70x = 3,799,222,344.03
  5. Step 5: Solve for x
    x = 3,799,222,344.03/69,708.70
  6. Step 6: Final answer
    x = 54,501.41

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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.