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Finding the Third Proportional to 68,865 and 106,411

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Solution

The third proportional to 68,865 and 106,411 is: 164,427.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,865 : 106,411 = 106,411 : x
  2. Step 2: Convert to fraction form
    68,865/106,411 = 106,411/x
  3. Step 3: Cross multiply
    68,865x = 106,411 × 106,411
  4. Step 4: Simplify right side
    68,865x = 11,323,300,921
  5. Step 5: Solve for x
    x = 11,323,300,921/68,865
  6. Step 6: Final answer
    x = 164,427.52

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.