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Finding the Fourth Proportional to 79,440.35, 109,629.05 and 43,631.87

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Solution

The fourth proportional to 79,440.35, 109,629.05 and 43,631.87 is: 60,212.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,440.35 : 109,629.05 = 43,631.87 : x
  2. Step 2: Convert to fraction form
    79,440.35/109,629.05 = 43,631.87/x
  3. Step 3: Cross multiply
    79,440.35x = 109,629.05 × 43,631.87
  4. Step 4: Simplify right side
    79,440.35x = 4,783,319,691.52
  5. Step 5: Solve for x
    x = 4,783,319,691.52/79,440.35
  6. Step 6: Final answer
    x = 60,212.73

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