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Finding the Third Proportional to 77,340 and 164,156

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Solution

The third proportional to 77,340 and 164,156 is: 348,425.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,340 : 164,156 = 164,156 : x
  2. Step 2: Convert to fraction form
    77,340/164,156 = 164,156/x
  3. Step 3: Cross multiply
    77,340x = 164,156 × 164,156
  4. Step 4: Simplify right side
    77,340x = 26,947,192,336
  5. Step 5: Solve for x
    x = 26,947,192,336/77,340
  6. Step 6: Final answer
    x = 348,425.04

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.