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Finding the Fourth Proportional to 68,745.20, 103,194.60 and 64,233.20

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Solution

The fourth proportional to 68,745.20, 103,194.60 and 64,233.20 is: 96,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,745.20 : 103,194.60 = 64,233.20 : x
  2. Step 2: Convert to fraction form
    68,745.20/103,194.60 = 64,233.20/x
  3. Step 3: Cross multiply
    68,745.20x = 103,194.60 × 64,233.20
  4. Step 4: Simplify right side
    68,745.20x = 6,628,519,380.72
  5. Step 5: Solve for x
    x = 6,628,519,380.72/68,745.20
  6. Step 6: Final answer
    x = 96,421.56

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