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Finding the Fourth Proportional to 207,396.94, 311,140.78 and 67,169.74

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Solution

The fourth proportional to 207,396.94, 311,140.78 and 67,169.74 is: 100,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,396.94 : 311,140.78 = 67,169.74 : x
  2. Step 2: Convert to fraction form
    207,396.94/311,140.78 = 67,169.74/x
  3. Step 3: Cross multiply
    207,396.94x = 311,140.78 × 67,169.74
  4. Step 4: Simplify right side
    207,396.94x = 20,899,245,296.00
  5. Step 5: Solve for x
    x = 20,899,245,296.00/207,396.94
  6. Step 6: Final answer
    x = 100,769.30

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