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Finding the Fourth Proportional to 199,676.16, 299,431.44 and 81,267.12

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Solution

The fourth proportional to 199,676.16, 299,431.44 and 81,267.12 is: 121,866.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,676.16 : 299,431.44 = 81,267.12 : x
  2. Step 2: Convert to fraction form
    199,676.16/299,431.44 = 81,267.12/x
  3. Step 3: Cross multiply
    199,676.16x = 299,431.44 × 81,267.12
  4. Step 4: Simplify right side
    199,676.16x = 24,333,930,766.25
  5. Step 5: Solve for x
    x = 24,333,930,766.25/199,676.16
  6. Step 6: Final answer
    x = 121,866.98

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