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Finding the Fourth Proportional to 87,679.54, 131,461.80 and 49,729.42

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Solution

The fourth proportional to 87,679.54, 131,461.80 and 49,729.42 is: 74,561.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,679.54 : 131,461.80 = 49,729.42 : x
  2. Step 2: Convert to fraction form
    87,679.54/131,461.80 = 49,729.42/x
  3. Step 3: Cross multiply
    87,679.54x = 131,461.80 × 49,729.42
  4. Step 4: Simplify right side
    87,679.54x = 6,537,519,066.16
  5. Step 5: Solve for x
    x = 6,537,519,066.16/87,679.54
  6. Step 6: Final answer
    x = 74,561.51

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