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Finding the Third Proportional to 76,715 and 164,091

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Solution

The third proportional to 76,715 and 164,091 is: 350,985.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,715 : 164,091 = 164,091 : x
  2. Step 2: Convert to fraction form
    76,715/164,091 = 164,091/x
  3. Step 3: Cross multiply
    76,715x = 164,091 × 164,091
  4. Step 4: Simplify right side
    76,715x = 26,925,856,281
  5. Step 5: Solve for x
    x = 26,925,856,281/76,715
  6. Step 6: Final answer
    x = 350,985.55

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.