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Finding the Fourth Proportional to 115,904.30, 173,856.45 and 71,617.55

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Solution

The fourth proportional to 115,904.30, 173,856.45 and 71,617.55 is: 107,426.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,904.30 : 173,856.45 = 71,617.55 : x
  2. Step 2: Convert to fraction form
    115,904.30/173,856.45 = 71,617.55/x
  3. Step 3: Cross multiply
    115,904.30x = 173,856.45 × 71,617.55
  4. Step 4: Simplify right side
    115,904.30x = 12,451,173,000.70
  5. Step 5: Solve for x
    x = 12,451,173,000.70/115,904.30
  6. Step 6: Final answer
    x = 107,426.33

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