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Finding the Fourth Proportional to 107,859.06, 149,114.52 and 80,954.86

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Solution

The fourth proportional to 107,859.06, 149,114.52 and 80,954.86 is: 111,919.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,859.06 : 149,114.52 = 80,954.86 : x
  2. Step 2: Convert to fraction form
    107,859.06/149,114.52 = 80,954.86/x
  3. Step 3: Cross multiply
    107,859.06x = 149,114.52 × 80,954.86
  4. Step 4: Simplify right side
    107,859.06x = 12,071,545,090.57
  5. Step 5: Solve for x
    x = 12,071,545,090.57/107,859.06
  6. Step 6: Final answer
    x = 111,919.62

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