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Finding the Fourth Proportional to 187,831.68, 281,740.23 and 75,478.20

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Solution

The fourth proportional to 187,831.68, 281,740.23 and 75,478.20 is: 113,214.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,831.68 : 281,740.23 = 75,478.20 : x
  2. Step 2: Convert to fraction form
    187,831.68/281,740.23 = 75,478.20/x
  3. Step 3: Cross multiply
    187,831.68x = 281,740.23 × 75,478.20
  4. Step 4: Simplify right side
    187,831.68x = 21,265,245,427.99
  5. Step 5: Solve for x
    x = 21,265,245,427.99/187,831.68
  6. Step 6: Final answer
    x = 113,214.37

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