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Finding the Fourth Proportional to 45,171.44, 67,766.86 and 13,578.87

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Solution

The fourth proportional to 45,171.44, 67,766.86 and 13,578.87 is: 20,371.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,171.44 : 67,766.86 = 13,578.87 : x
  2. Step 2: Convert to fraction form
    45,171.44/67,766.86 = 13,578.87/x
  3. Step 3: Cross multiply
    45,171.44x = 67,766.86 × 13,578.87
  4. Step 4: Simplify right side
    45,171.44x = 920,197,653.35
  5. Step 5: Solve for x
    x = 920,197,653.35/45,171.44
  6. Step 6: Final answer
    x = 20,371.23

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