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Finding the Fourth Proportional to 69,789.60, 96,268.61 and 43,906.98

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Solution

The fourth proportional to 69,789.60, 96,268.61 and 43,906.98 is: 60,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,789.60 : 96,268.61 = 43,906.98 : x
  2. Step 2: Convert to fraction form
    69,789.60/96,268.61 = 43,906.98/x
  3. Step 3: Cross multiply
    69,789.60x = 96,268.61 × 43,906.98
  4. Step 4: Simplify right side
    69,789.60x = 4,226,863,933.90
  5. Step 5: Solve for x
    x = 4,226,863,933.90/69,789.60
  6. Step 6: Final answer
    x = 60,565.81

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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.