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Finding the Fourth Proportional to 168,812.60, 253,218.90 and 84,831.80

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Solution

The fourth proportional to 168,812.60, 253,218.90 and 84,831.80 is: 127,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,812.60 : 253,218.90 = 84,831.80 : x
  2. Step 2: Convert to fraction form
    168,812.60/253,218.90 = 84,831.80/x
  3. Step 3: Cross multiply
    168,812.60x = 253,218.90 × 84,831.80
  4. Step 4: Simplify right side
    168,812.60x = 21,481,015,081.02
  5. Step 5: Solve for x
    x = 21,481,015,081.02/168,812.60
  6. Step 6: Final answer
    x = 127,247.70

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