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Finding the Fourth Proportional to 170,543.80, 256,107.30 and 111,640.60

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Solution

The fourth proportional to 170,543.80, 256,107.30 and 111,640.60 is: 167,651.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,543.80 : 256,107.30 = 111,640.60 : x
  2. Step 2: Convert to fraction form
    170,543.80/256,107.30 = 111,640.60/x
  3. Step 3: Cross multiply
    170,543.80x = 256,107.30 × 111,640.60
  4. Step 4: Simplify right side
    170,543.80x = 28,591,972,636.38
  5. Step 5: Solve for x
    x = 28,591,972,636.38/170,543.80
  6. Step 6: Final answer
    x = 167,651.79

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