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Finding the Third Proportional to 196,434.75 and 424,170.75

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Solution

The third proportional to 196,434.75 and 424,170.75 is: 915,931.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,434.75 : 424,170.75 = 424,170.75 : x
  2. Step 2: Convert to fraction form
    196,434.75/424,170.75 = 424,170.75/x
  3. Step 3: Cross multiply
    196,434.75x = 424,170.75 × 424,170.75
  4. Step 4: Simplify right side
    196,434.75x = 179,920,825,155.56
  5. Step 5: Solve for x
    x = 179,920,825,155.56/196,434.75
  6. Step 6: Final answer
    x = 915,931.75

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.