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Finding the Third Proportional to 172,669 and 262,604

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Solution

The third proportional to 172,669 and 262,604 is: 399,381.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,669 : 262,604 = 262,604 : x
  2. Step 2: Convert to fraction form
    172,669/262,604 = 262,604/x
  3. Step 3: Cross multiply
    172,669x = 262,604 × 262,604
  4. Step 4: Simplify right side
    172,669x = 68,960,860,816
  5. Step 5: Solve for x
    x = 68,960,860,816/172,669
  6. Step 6: Final answer
    x = 399,381.83

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.