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Finding the Third Proportional to 172,181.25 and 365,206.50

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Solution

The third proportional to 172,181.25 and 365,206.50 is: 774,624.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,181.25 : 365,206.50 = 365,206.50 : x
  2. Step 2: Convert to fraction form
    172,181.25/365,206.50 = 365,206.50/x
  3. Step 3: Cross multiply
    172,181.25x = 365,206.50 × 365,206.50
  4. Step 4: Simplify right side
    172,181.25x = 133,375,787,642.25
  5. Step 5: Solve for x
    x = 133,375,787,642.25/172,181.25
  6. Step 6: Final answer
    x = 774,624.34

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.