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Finding the Third Proportional to 156,928 and 339,927

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Solution

The third proportional to 156,928 and 339,927 is: 736,327.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,928 : 339,927 = 339,927 : x
  2. Step 2: Convert to fraction form
    156,928/339,927 = 339,927/x
  3. Step 3: Cross multiply
    156,928x = 339,927 × 339,927
  4. Step 4: Simplify right side
    156,928x = 115,550,365,329
  5. Step 5: Solve for x
    x = 115,550,365,329/156,928
  6. Step 6: Final answer
    x = 736,327.27

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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.