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Finding the Third Proportional to 191,981.25 and 418,956.75

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Solution

The third proportional to 191,981.25 and 418,956.75 is: 914,280.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,981.25 : 418,956.75 = 418,956.75 : x
  2. Step 2: Convert to fraction form
    191,981.25/418,956.75 = 418,956.75/x
  3. Step 3: Cross multiply
    191,981.25x = 418,956.75 × 418,956.75
  4. Step 4: Simplify right side
    191,981.25x = 175,524,758,370.56
  5. Step 5: Solve for x
    x = 175,524,758,370.56/191,981.25
  6. Step 6: Final answer
    x = 914,280.74

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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.