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Finding the Third Proportional to 72,702 and 106,652

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Solution

The third proportional to 72,702 and 106,652 is: 156,455.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,702 : 106,652 = 106,652 : x
  2. Step 2: Convert to fraction form
    72,702/106,652 = 106,652/x
  3. Step 3: Cross multiply
    72,702x = 106,652 × 106,652
  4. Step 4: Simplify right side
    72,702x = 11,374,649,104
  5. Step 5: Solve for x
    x = 11,374,649,104/72,702
  6. Step 6: Final answer
    x = 156,455.79

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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.