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Finding the Third Proportional to 192,121.88 and 276,721.31

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Solution

The third proportional to 192,121.88 and 276,721.31 is: 398,573.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,121.88 : 276,721.31 = 276,721.31 : x
  2. Step 2: Convert to fraction form
    192,121.88/276,721.31 = 276,721.31/x
  3. Step 3: Cross multiply
    192,121.88x = 276,721.31 × 276,721.31
  4. Step 4: Simplify right side
    192,121.88x = 76,574,684,791.72
  5. Step 5: Solve for x
    x = 76,574,684,791.72/192,121.88
  6. Step 6: Final answer
    x = 398,573.48

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These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.