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Finding the Fourth Proportional to 79,231.76, 109,339.84 and 43,421.44

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Solution

The fourth proportional to 79,231.76, 109,339.84 and 43,421.44 is: 59,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,231.76 : 109,339.84 = 43,421.44 : x
  2. Step 2: Convert to fraction form
    79,231.76/109,339.84 = 43,421.44/x
  3. Step 3: Cross multiply
    79,231.76x = 109,339.84 × 43,421.44
  4. Step 4: Simplify right side
    79,231.76x = 4,747,693,302.17
  5. Step 5: Solve for x
    x = 4,747,693,302.17/79,231.76
  6. Step 6: Final answer
    x = 59,921.59

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