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Finding the Fourth Proportional to 139,315.65, 192,286.22 and 91,573.44

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Solution

The fourth proportional to 139,315.65, 192,286.22 and 91,573.44 is: 126,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,315.65 : 192,286.22 = 91,573.44 : x
  2. Step 2: Convert to fraction form
    139,315.65/192,286.22 = 91,573.44/x
  3. Step 3: Cross multiply
    139,315.65x = 192,286.22 × 91,573.44
  4. Step 4: Simplify right side
    139,315.65x = 17,608,310,172.13
  5. Step 5: Solve for x
    x = 17,608,310,172.13/139,315.65
  6. Step 6: Final answer
    x = 126,391.47

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