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Finding the Fourth Proportional to 170,843.60, 256,265.40 and 111,861.20

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Solution

The fourth proportional to 170,843.60, 256,265.40 and 111,861.20 is: 167,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,843.60 : 256,265.40 = 111,861.20 : x
  2. Step 2: Convert to fraction form
    170,843.60/256,265.40 = 111,861.20/x
  3. Step 3: Cross multiply
    170,843.60x = 256,265.40 × 111,861.20
  4. Step 4: Simplify right side
    170,843.60x = 28,666,155,162.48
  5. Step 5: Solve for x
    x = 28,666,155,162.48/170,843.60
  6. Step 6: Final answer
    x = 167,791.80

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