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Finding the Fourth Proportional to 192,814.20, 289,026.90 and 87,708.60

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Solution

The fourth proportional to 192,814.20, 289,026.90 and 87,708.60 is: 131,474.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,814.20 : 289,026.90 = 87,708.60 : x
  2. Step 2: Convert to fraction form
    192,814.20/289,026.90 = 87,708.60/x
  3. Step 3: Cross multiply
    192,814.20x = 289,026.90 × 87,708.60
  4. Step 4: Simplify right side
    192,814.20x = 25,350,144,761.34
  5. Step 5: Solve for x
    x = 25,350,144,761.34/192,814.20
  6. Step 6: Final answer
    x = 131,474.47

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