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Finding the Third Proportional to 172,126.50 and 284,451

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Solution

The third proportional to 172,126.50 and 284,451 is: 470,075.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,126.50 : 284,451 = 284,451 : x
  2. Step 2: Convert to fraction form
    172,126.50/284,451 = 284,451/x
  3. Step 3: Cross multiply
    172,126.50x = 284,451 × 284,451
  4. Step 4: Simplify right side
    172,126.50x = 80,912,371,401
  5. Step 5: Solve for x
    x = 80,912,371,401/172,126.50
  6. Step 6: Final answer
    x = 470,075.04

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.