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Finding the Third Proportional to 151,920.75 and 331,176.75

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Solution

The third proportional to 151,920.75 and 331,176.75 is: 721,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,920.75 : 331,176.75 = 331,176.75 : x
  2. Step 2: Convert to fraction form
    151,920.75/331,176.75 = 331,176.75/x
  3. Step 3: Cross multiply
    151,920.75x = 331,176.75 × 331,176.75
  4. Step 4: Simplify right side
    151,920.75x = 109,678,039,740.56
  5. Step 5: Solve for x
    x = 109,678,039,740.56/151,920.75
  6. Step 6: Final answer
    x = 721,942.46

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.