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Finding the Fourth Proportional to 111,887.60, 168,025.80 and 108,388.40

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Solution

The fourth proportional to 111,887.60, 168,025.80 and 108,388.40 is: 162,770.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,887.60 : 168,025.80 = 108,388.40 : x
  2. Step 2: Convert to fraction form
    111,887.60/168,025.80 = 108,388.40/x
  3. Step 3: Cross multiply
    111,887.60x = 168,025.80 × 108,388.40
  4. Step 4: Simplify right side
    111,887.60x = 18,212,047,620.72
  5. Step 5: Solve for x
    x = 18,212,047,620.72/111,887.60
  6. Step 6: Final answer
    x = 162,770.92

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