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Finding the Third Proportional to 186,342 and 263,420

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Solution

The third proportional to 186,342 and 263,420 is: 372,380.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,342 : 263,420 = 263,420 : x
  2. Step 2: Convert to fraction form
    186,342/263,420 = 263,420/x
  3. Step 3: Cross multiply
    186,342x = 263,420 × 263,420
  4. Step 4: Simplify right side
    186,342x = 69,390,096,400
  5. Step 5: Solve for x
    x = 69,390,096,400/186,342
  6. Step 6: Final answer
    x = 372,380.34

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.