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Finding the Third Proportional to 88,720 and 192,416

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Solution

The third proportional to 88,720 and 192,416 is: 417,311.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,720 : 192,416 = 192,416 : x
  2. Step 2: Convert to fraction form
    88,720/192,416 = 192,416/x
  3. Step 3: Cross multiply
    88,720x = 192,416 × 192,416
  4. Step 4: Simplify right side
    88,720x = 37,023,917,056
  5. Step 5: Solve for x
    x = 37,023,917,056/88,720
  6. Step 6: Final answer
    x = 417,311.96

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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.