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Finding the Fourth Proportional to 108,640.80, 162,961.20 and 104,704.20

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Solution

The fourth proportional to 108,640.80, 162,961.20 and 104,704.20 is: 157,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,640.80 : 162,961.20 = 104,704.20 : x
  2. Step 2: Convert to fraction form
    108,640.80/162,961.20 = 104,704.20/x
  3. Step 3: Cross multiply
    108,640.80x = 162,961.20 × 104,704.20
  4. Step 4: Simplify right side
    108,640.80x = 17,062,722,077.04
  5. Step 5: Solve for x
    x = 17,062,722,077.04/108,640.80
  6. Step 6: Final answer
    x = 157,056.30

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