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Finding the Fourth Proportional to 194,229.20, 291,331.80 and 81,861.20

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Solution

The fourth proportional to 194,229.20, 291,331.80 and 81,861.20 is: 122,786.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,229.20 : 291,331.80 = 81,861.20 : x
  2. Step 2: Convert to fraction form
    194,229.20/291,331.80 = 81,861.20/x
  3. Step 3: Cross multiply
    194,229.20x = 291,331.80 × 81,861.20
  4. Step 4: Simplify right side
    194,229.20x = 23,848,770,746.16
  5. Step 5: Solve for x
    x = 23,848,770,746.16/194,229.20
  6. Step 6: Final answer
    x = 122,786.74

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