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Finding the Fourth Proportional to 178,867.20, 268,300.80 and 80,563.20

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Solution

The fourth proportional to 178,867.20, 268,300.80 and 80,563.20 is: 120,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,867.20 : 268,300.80 = 80,563.20 : x
  2. Step 2: Convert to fraction form
    178,867.20/268,300.80 = 80,563.20/x
  3. Step 3: Cross multiply
    178,867.20x = 268,300.80 × 80,563.20
  4. Step 4: Simplify right side
    178,867.20x = 21,615,171,010.56
  5. Step 5: Solve for x
    x = 21,615,171,010.56/178,867.20
  6. Step 6: Final answer
    x = 120,844.80

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