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Finding the Fourth Proportional to 82,049.94, 123,074.90 and 19,720.44

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Solution

The fourth proportional to 82,049.94, 123,074.90 and 19,720.44 is: 29,580.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,049.94 : 123,074.90 = 19,720.44 : x
  2. Step 2: Convert to fraction form
    82,049.94/123,074.90 = 19,720.44/x
  3. Step 3: Cross multiply
    82,049.94x = 123,074.90 × 19,720.44
  4. Step 4: Simplify right side
    82,049.94x = 2,427,091,180.96
  5. Step 5: Solve for x
    x = 2,427,091,180.96/82,049.94
  6. Step 6: Final answer
    x = 29,580.66

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