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Finding the Fourth Proportional to 69,107.98, 95,367.95 and 38,480.86

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Solution

The fourth proportional to 69,107.98, 95,367.95 and 38,480.86 is: 53,103.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,107.98 : 95,367.95 = 38,480.86 : x
  2. Step 2: Convert to fraction form
    69,107.98/95,367.95 = 38,480.86/x
  3. Step 3: Cross multiply
    69,107.98x = 95,367.95 × 38,480.86
  4. Step 4: Simplify right side
    69,107.98x = 3,669,840,540.03
  5. Step 5: Solve for x
    x = 3,669,840,540.03/69,107.98
  6. Step 6: Final answer
    x = 53,103.00

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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.