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Finding the Fourth Proportional to 248,611.20, 372,916.80 and 82,399.20

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Solution

The fourth proportional to 248,611.20, 372,916.80 and 82,399.20 is: 123,598.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,611.20 : 372,916.80 = 82,399.20 : x
  2. Step 2: Convert to fraction form
    248,611.20/372,916.80 = 82,399.20/x
  3. Step 3: Cross multiply
    248,611.20x = 372,916.80 × 82,399.20
  4. Step 4: Simplify right side
    248,611.20x = 30,728,045,986.56
  5. Step 5: Solve for x
    x = 30,728,045,986.56/248,611.20
  6. Step 6: Final answer
    x = 123,598.80

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