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Finding the Third Proportional to 148,016 and 218,104

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Solution

The third proportional to 148,016 and 218,104 is: 321,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,016 : 218,104 = 218,104 : x
  2. Step 2: Convert to fraction form
    148,016/218,104 = 218,104/x
  3. Step 3: Cross multiply
    148,016x = 218,104 × 218,104
  4. Step 4: Simplify right side
    148,016x = 47,569,354,816
  5. Step 5: Solve for x
    x = 47,569,354,816/148,016
  6. Step 6: Final answer
    x = 321,379.82

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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.