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Finding the Third Proportional to 172,519,637.91 and 371,345,608.69

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Solution

The third proportional to 172,519,637.91 and 371,345,608.69 is: 799,315,154.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,519,637.91 : 371,345,608.69 = 371,345,608.69 : x
  2. Step 2: Convert to fraction form
    172,519,637.91/371,345,608.69 = 371,345,608.69/x
  3. Step 3: Cross multiply
    172,519,637.91x = 371,345,608.69 × 371,345,608.69
  4. Step 4: Simplify right side
    172,519,637.91x = 137,897,561,091,489,872
  5. Step 5: Solve for x
    x = 137,897,561,091,489,872/172,519,637.91
  6. Step 6: Final answer
    x = 799,315,154.87

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.