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Finding the Fourth Proportional to 80,908.17, 111,399.18 and 68,784.81

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Solution

The fourth proportional to 80,908.17, 111,399.18 and 68,784.81 is: 94,707.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,908.17 : 111,399.18 = 68,784.81 : x
  2. Step 2: Convert to fraction form
    80,908.17/111,399.18 = 68,784.81/x
  3. Step 3: Cross multiply
    80,908.17x = 111,399.18 × 68,784.81
  4. Step 4: Simplify right side
    80,908.17x = 7,662,571,430.46
  5. Step 5: Solve for x
    x = 7,662,571,430.46/80,908.17
  6. Step 6: Final answer
    x = 94,707.02

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