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Finding the Third Proportional to 156,932 and 339,936

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Solution

The third proportional to 156,932 and 339,936 is: 736,347.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,932 : 339,936 = 339,936 : x
  2. Step 2: Convert to fraction form
    156,932/339,936 = 339,936/x
  3. Step 3: Cross multiply
    156,932x = 339,936 × 339,936
  4. Step 4: Simplify right side
    156,932x = 115,556,484,096
  5. Step 5: Solve for x
    x = 115,556,484,096/156,932
  6. Step 6: Final answer
    x = 736,347.49

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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.