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Finding the Fourth Proportional to 263,245.31, 394,867.65 and 85,752.03

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Solution

The fourth proportional to 263,245.31, 394,867.65 and 85,752.03 is: 128,627.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,245.31 : 394,867.65 = 85,752.03 : x
  2. Step 2: Convert to fraction form
    263,245.31/394,867.65 = 85,752.03/x
  3. Step 3: Cross multiply
    263,245.31x = 394,867.65 × 85,752.03
  4. Step 4: Simplify right side
    263,245.31x = 33,860,702,568.83
  5. Step 5: Solve for x
    x = 33,860,702,568.83/263,245.31
  6. Step 6: Final answer
    x = 128,627.94

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