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Finding the Third Proportional to 172,530.75 and 365,815.13

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Solution

The third proportional to 172,530.75 and 365,815.13 is: 775,633.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,530.75 : 365,815.13 = 365,815.13 : x
  2. Step 2: Convert to fraction form
    172,530.75/365,815.13 = 365,815.13/x
  3. Step 3: Cross multiply
    172,530.75x = 365,815.13 × 365,815.13
  4. Step 4: Simplify right side
    172,530.75x = 133,820,705,678.77
  5. Step 5: Solve for x
    x = 133,820,705,678.77/172,530.75
  6. Step 6: Final answer
    x = 775,633.94

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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.