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Finding the Fourth Proportional to 80,743.68, 111,310.79 and 56,796.03

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Solution

The fourth proportional to 80,743.68, 111,310.79 and 56,796.03 is: 78,297.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,743.68 : 111,310.79 = 56,796.03 : x
  2. Step 2: Convert to fraction form
    80,743.68/111,310.79 = 56,796.03/x
  3. Step 3: Cross multiply
    80,743.68x = 111,310.79 × 56,796.03
  4. Step 4: Simplify right side
    80,743.68x = 6,322,010,684.18
  5. Step 5: Solve for x
    x = 6,322,010,684.18/80,743.68
  6. Step 6: Final answer
    x = 78,297.28

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