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Finding the Third Proportional to 68,809.50 and 106,345.50

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Solution

The third proportional to 68,809.50 and 106,345.50 is: 164,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,809.50 : 106,345.50 = 106,345.50 : x
  2. Step 2: Convert to fraction form
    68,809.50/106,345.50 = 106,345.50/x
  3. Step 3: Cross multiply
    68,809.50x = 106,345.50 × 106,345.50
  4. Step 4: Simplify right side
    68,809.50x = 11,309,365,370.25
  5. Step 5: Solve for x
    x = 11,309,365,370.25/68,809.50
  6. Step 6: Final answer
    x = 164,357.62

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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.