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Finding the Third Proportional to 72,008 and 107,260

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Solution

The third proportional to 72,008 and 107,260 is: 159,769.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,008 : 107,260 = 107,260 : x
  2. Step 2: Convert to fraction form
    72,008/107,260 = 107,260/x
  3. Step 3: Cross multiply
    72,008x = 107,260 × 107,260
  4. Step 4: Simplify right side
    72,008x = 11,504,707,600
  5. Step 5: Solve for x
    x = 11,504,707,600/72,008
  6. Step 6: Final answer
    x = 159,769.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.