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Finding the Fourth Proportional to 57,777.20, 86,665.80 and 16,218.80

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Solution

The fourth proportional to 57,777.20, 86,665.80 and 16,218.80 is: 24,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,777.20 : 86,665.80 = 16,218.80 : x
  2. Step 2: Convert to fraction form
    57,777.20/86,665.80 = 16,218.80/x
  3. Step 3: Cross multiply
    57,777.20x = 86,665.80 × 16,218.80
  4. Step 4: Simplify right side
    57,777.20x = 1,405,615,277.04
  5. Step 5: Solve for x
    x = 1,405,615,277.04/57,777.20
  6. Step 6: Final answer
    x = 24,328.20

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