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Finding the Fourth Proportional to 91,251.28, 137,119.92 and 49,163.68

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Solution

The fourth proportional to 91,251.28, 137,119.92 and 49,163.68 is: 73,876.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,251.28 : 137,119.92 = 49,163.68 : x
  2. Step 2: Convert to fraction form
    91,251.28/137,119.92 = 49,163.68/x
  3. Step 3: Cross multiply
    91,251.28x = 137,119.92 × 49,163.68
  4. Step 4: Simplify right side
    91,251.28x = 6,741,319,868.51
  5. Step 5: Solve for x
    x = 6,741,319,868.51/91,251.28
  6. Step 6: Final answer
    x = 73,876.44

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