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Finding the Fourth Proportional to 206,165.14, 308,722.65 and 135,831.22

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Solution

The fourth proportional to 206,165.14, 308,722.65 and 135,831.22 is: 203,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,165.14 : 308,722.65 = 135,831.22 : x
  2. Step 2: Convert to fraction form
    206,165.14/308,722.65 = 135,831.22/x
  3. Step 3: Cross multiply
    206,165.14x = 308,722.65 × 135,831.22
  4. Step 4: Simplify right side
    206,165.14x = 41,934,174,191.13
  5. Step 5: Solve for x
    x = 41,934,174,191.13/206,165.14
  6. Step 6: Final answer
    x = 203,400.90

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