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Finding the Third Proportional to 79,429.50 and 170,376

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Solution

The third proportional to 79,429.50 and 170,376 is: 365,455.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,429.50 : 170,376 = 170,376 : x
  2. Step 2: Convert to fraction form
    79,429.50/170,376 = 170,376/x
  3. Step 3: Cross multiply
    79,429.50x = 170,376 × 170,376
  4. Step 4: Simplify right side
    79,429.50x = 29,027,981,376
  5. Step 5: Solve for x
    x = 29,027,981,376/79,429.50
  6. Step 6: Final answer
    x = 365,455.92

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.