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Finding the Fourth Proportional to 78,991.82, 109,008.74 and 43,181.82

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Solution

The fourth proportional to 78,991.82, 109,008.74 and 43,181.82 is: 59,590.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,991.82 : 109,008.74 = 43,181.82 : x
  2. Step 2: Convert to fraction form
    78,991.82/109,008.74 = 43,181.82/x
  3. Step 3: Cross multiply
    78,991.82x = 109,008.74 × 43,181.82
  4. Step 4: Simplify right side
    78,991.82x = 4,707,195,789.11
  5. Step 5: Solve for x
    x = 4,707,195,789.11/78,991.82
  6. Step 6: Final answer
    x = 59,590.93

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