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Finding the Fourth Proportional to 71,017.61, 106,540.99 and 21,093.26

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Solution

The fourth proportional to 71,017.61, 106,540.99 and 21,093.26 is: 31,644.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,017.61 : 106,540.99 = 21,093.26 : x
  2. Step 2: Convert to fraction form
    71,017.61/106,540.99 = 21,093.26/x
  3. Step 3: Cross multiply
    71,017.61x = 106,540.99 × 21,093.26
  4. Step 4: Simplify right side
    71,017.61x = 2,247,296,589.11
  5. Step 5: Solve for x
    x = 2,247,296,589.11/71,017.61
  6. Step 6: Final answer
    x = 31,644.22

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