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Finding the Fourth Proportional to 69,138.96, 103,685.38 and 27,008.12

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Solution

The fourth proportional to 69,138.96, 103,685.38 and 27,008.12 is: 40,503.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,138.96 : 103,685.38 = 27,008.12 : x
  2. Step 2: Convert to fraction form
    69,138.96/103,685.38 = 27,008.12/x
  3. Step 3: Cross multiply
    69,138.96x = 103,685.38 × 27,008.12
  4. Step 4: Simplify right side
    69,138.96x = 2,800,347,185.29
  5. Step 5: Solve for x
    x = 2,800,347,185.29/69,138.96
  6. Step 6: Final answer
    x = 40,503.17

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