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Finding the Third Proportional to 161,447.50 and 221,624

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Solution

The third proportional to 161,447.50 and 221,624 is: 304,230.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,447.50 : 221,624 = 221,624 : x
  2. Step 2: Convert to fraction form
    161,447.50/221,624 = 221,624/x
  3. Step 3: Cross multiply
    161,447.50x = 221,624 × 221,624
  4. Step 4: Simplify right side
    161,447.50x = 49,117,197,376
  5. Step 5: Solve for x
    x = 49,117,197,376/161,447.50
  6. Step 6: Final answer
    x = 304,230.15

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.