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Finding the Third Proportional to 72,734 and 106,703

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Solution

The third proportional to 72,734 and 106,703 is: 156,536.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,734 : 106,703 = 106,703 : x
  2. Step 2: Convert to fraction form
    72,734/106,703 = 106,703/x
  3. Step 3: Cross multiply
    72,734x = 106,703 × 106,703
  4. Step 4: Simplify right side
    72,734x = 11,385,530,209
  5. Step 5: Solve for x
    x = 11,385,530,209/72,734
  6. Step 6: Final answer
    x = 156,536.56

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.