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Finding the Third Proportional to 76,464 and 164,646

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Solution

The third proportional to 76,464 and 164,646 is: 354,523.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,464 : 164,646 = 164,646 : x
  2. Step 2: Convert to fraction form
    76,464/164,646 = 164,646/x
  3. Step 3: Cross multiply
    76,464x = 164,646 × 164,646
  4. Step 4: Simplify right side
    76,464x = 27,108,305,316
  5. Step 5: Solve for x
    x = 27,108,305,316/76,464
  6. Step 6: Final answer
    x = 354,523.77

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.