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Finding the Third Proportional to 171,979.88 and 252,912.38

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Solution

The third proportional to 171,979.88 and 252,912.38 is: 371,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,979.88 : 252,912.38 = 252,912.38 : x
  2. Step 2: Convert to fraction form
    171,979.88/252,912.38 = 252,912.38/x
  3. Step 3: Cross multiply
    171,979.88x = 252,912.38 × 252,912.38
  4. Step 4: Simplify right side
    171,979.88x = 63,964,669,428.14
  5. Step 5: Solve for x
    x = 63,964,669,428.14/171,979.88
  6. Step 6: Final answer
    x = 371,931.13

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.