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Finding the Fourth Proportional to 111,957.20, 167,935.80 and 67,720.40

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Solution

The fourth proportional to 111,957.20, 167,935.80 and 67,720.40 is: 101,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,957.20 : 167,935.80 = 67,720.40 : x
  2. Step 2: Convert to fraction form
    111,957.20/167,935.80 = 67,720.40/x
  3. Step 3: Cross multiply
    111,957.20x = 167,935.80 × 67,720.40
  4. Step 4: Simplify right side
    111,957.20x = 11,372,679,550.32
  5. Step 5: Solve for x
    x = 11,372,679,550.32/111,957.20
  6. Step 6: Final answer
    x = 101,580.60

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