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Finding the Third Proportional to 191,715.75 and 415,170.56

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Solution

The third proportional to 191,715.75 and 415,170.56 is: 899,073.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,715.75 : 415,170.56 = 415,170.56 : x
  2. Step 2: Convert to fraction form
    191,715.75/415,170.56 = 415,170.56/x
  3. Step 3: Cross multiply
    191,715.75x = 415,170.56 × 415,170.56
  4. Step 4: Simplify right side
    191,715.75x = 172,366,595,966.57
  5. Step 5: Solve for x
    x = 172,366,595,966.57/191,715.75
  6. Step 6: Final answer
    x = 899,073.74

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.