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Finding the Third Proportional to 193,218.75 and 419,706

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Solution

The third proportional to 193,218.75 and 419,706 is: 911,677.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,218.75 : 419,706 = 419,706 : x
  2. Step 2: Convert to fraction form
    193,218.75/419,706 = 419,706/x
  3. Step 3: Cross multiply
    193,218.75x = 419,706 × 419,706
  4. Step 4: Simplify right side
    193,218.75x = 176,153,126,436
  5. Step 5: Solve for x
    x = 176,153,126,436/193,218.75
  6. Step 6: Final answer
    x = 911,677.19

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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.