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Finding the Third Proportional to 199,760 and 429,166

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Solution

The third proportional to 199,760 and 429,166 is: 922,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,760 : 429,166 = 429,166 : x
  2. Step 2: Convert to fraction form
    199,760/429,166 = 429,166/x
  3. Step 3: Cross multiply
    199,760x = 429,166 × 429,166
  4. Step 4: Simplify right side
    199,760x = 184,183,455,556
  5. Step 5: Solve for x
    x = 184,183,455,556/199,760
  6. Step 6: Final answer
    x = 922,023.71

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.