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Finding the Fourth Proportional to 206,839.60, 310,259.40 and 185,844.40

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Solution

The fourth proportional to 206,839.60, 310,259.40 and 185,844.40 is: 278,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,839.60 : 310,259.40 = 185,844.40 : x
  2. Step 2: Convert to fraction form
    206,839.60/310,259.40 = 185,844.40/x
  3. Step 3: Cross multiply
    206,839.60x = 310,259.40 × 185,844.40
  4. Step 4: Simplify right side
    206,839.60x = 57,659,972,037.36
  5. Step 5: Solve for x
    x = 57,659,972,037.36/206,839.60
  6. Step 6: Final answer
    x = 278,766.60

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