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Finding the Fourth Proportional to 106,989.20, 160,176.60 and 65,517.20

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Solution

The fourth proportional to 106,989.20, 160,176.60 and 65,517.20 is: 98,087.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,989.20 : 160,176.60 = 65,517.20 : x
  2. Step 2: Convert to fraction form
    106,989.20/160,176.60 = 65,517.20/x
  3. Step 3: Cross multiply
    106,989.20x = 160,176.60 × 65,517.20
  4. Step 4: Simplify right side
    106,989.20x = 10,494,322,337.52
  5. Step 5: Solve for x
    x = 10,494,322,337.52/106,989.20
  6. Step 6: Final answer
    x = 98,087.68

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