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Finding the Third Proportional to 79,658 and 108,248

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Solution

The third proportional to 79,658 and 108,248 is: 147,099.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,658 : 108,248 = 108,248 : x
  2. Step 2: Convert to fraction form
    79,658/108,248 = 108,248/x
  3. Step 3: Cross multiply
    79,658x = 108,248 × 108,248
  4. Step 4: Simplify right side
    79,658x = 11,717,629,504
  5. Step 5: Solve for x
    x = 11,717,629,504/79,658
  6. Step 6: Final answer
    x = 147,099.22

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.