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Finding the Fourth Proportional to 125,438.64, 173,105.28 and 68,849.88

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Solution

The fourth proportional to 125,438.64, 173,105.28 and 68,849.88 is: 95,012.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,438.64 : 173,105.28 = 68,849.88 : x
  2. Step 2: Convert to fraction form
    125,438.64/173,105.28 = 68,849.88/x
  3. Step 3: Cross multiply
    125,438.64x = 173,105.28 × 68,849.88
  4. Step 4: Simplify right side
    125,438.64x = 11,918,277,755.37
  5. Step 5: Solve for x
    x = 11,918,277,755.37/125,438.64
  6. Step 6: Final answer
    x = 95,012.81

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