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Finding the Fourth Proportional to 111,930.80, 167,896.20 and 99,683.60

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Solution

The fourth proportional to 111,930.80, 167,896.20 and 99,683.60 is: 149,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,930.80 : 167,896.20 = 99,683.60 : x
  2. Step 2: Convert to fraction form
    111,930.80/167,896.20 = 99,683.60/x
  3. Step 3: Cross multiply
    111,930.80x = 167,896.20 × 99,683.60
  4. Step 4: Simplify right side
    111,930.80x = 16,736,497,642.32
  5. Step 5: Solve for x
    x = 16,736,497,642.32/111,930.80
  6. Step 6: Final answer
    x = 149,525.40

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