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Finding the Fourth Proportional to 173,863.80, 260,844.30 and 85,120.20

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Solution

The fourth proportional to 173,863.80, 260,844.30 and 85,120.20 is: 127,704.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,863.80 : 260,844.30 = 85,120.20 : x
  2. Step 2: Convert to fraction form
    173,863.80/260,844.30 = 85,120.20/x
  3. Step 3: Cross multiply
    173,863.80x = 260,844.30 × 85,120.20
  4. Step 4: Simplify right side
    173,863.80x = 22,203,118,984.86
  5. Step 5: Solve for x
    x = 22,203,118,984.86/173,863.80
  6. Step 6: Final answer
    x = 127,704.09

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