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Finding the Fourth Proportional to 87,698.60, 121,035.90 and 49,465.97

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Solution

The fourth proportional to 87,698.60, 121,035.90 and 49,465.97 is: 68,269.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,698.60 : 121,035.90 = 49,465.97 : x
  2. Step 2: Convert to fraction form
    87,698.60/121,035.90 = 49,465.97/x
  3. Step 3: Cross multiply
    87,698.60x = 121,035.90 × 49,465.97
  4. Step 4: Simplify right side
    87,698.60x = 5,987,158,198.32
  5. Step 5: Solve for x
    x = 5,987,158,198.32/87,698.60
  6. Step 6: Final answer
    x = 68,269.71

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