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Finding the Fourth Proportional to 272,199.20, 407,996.26 and 205,422.80

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Solution

The fourth proportional to 272,199.20, 407,996.26 and 205,422.80 is: 307,905.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,199.20 : 407,996.26 = 205,422.80 : x
  2. Step 2: Convert to fraction form
    272,199.20/407,996.26 = 205,422.80/x
  3. Step 3: Cross multiply
    272,199.20x = 407,996.26 × 205,422.80
  4. Step 4: Simplify right side
    272,199.20x = 83,811,731,565.19
  5. Step 5: Solve for x
    x = 83,811,731,565.19/272,199.20
  6. Step 6: Final answer
    x = 307,905.88

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