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Finding the Fourth Proportional to 139,721.63, 192,816.75 and 76,059.41

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Solution

The fourth proportional to 139,721.63, 192,816.75 and 76,059.41 is: 104,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,721.63 : 192,816.75 = 76,059.41 : x
  2. Step 2: Convert to fraction form
    139,721.63/192,816.75 = 76,059.41/x
  3. Step 3: Cross multiply
    139,721.63x = 192,816.75 × 76,059.41
  4. Step 4: Simplify right side
    139,721.63x = 14,665,528,243.12
  5. Step 5: Solve for x
    x = 14,665,528,243.12/139,721.63
  6. Step 6: Final answer
    x = 104,962.48

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