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Finding the Third Proportional to 68,817 and 106,357.50

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Solution

The third proportional to 68,817 and 106,357.50 is: 164,376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,817 : 106,357.50 = 106,357.50 : x
  2. Step 2: Convert to fraction form
    68,817/106,357.50 = 106,357.50/x
  3. Step 3: Cross multiply
    68,817x = 106,357.50 × 106,357.50
  4. Step 4: Simplify right side
    68,817x = 11,311,917,806.25
  5. Step 5: Solve for x
    x = 11,311,917,806.25/68,817
  6. Step 6: Final answer
    x = 164,376.79

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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.