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Finding the Third Proportional to 68,964.75 and 105,447.38

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Solution

The third proportional to 68,964.75 and 105,447.38 is: 161,229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,964.75 : 105,447.38 = 105,447.38 : x
  2. Step 2: Convert to fraction form
    68,964.75/105,447.38 = 105,447.38/x
  3. Step 3: Cross multiply
    68,964.75x = 105,447.38 × 105,447.38
  4. Step 4: Simplify right side
    68,964.75x = 11,119,148,894.39
  5. Step 5: Solve for x
    x = 11,119,148,894.39/68,964.75
  6. Step 6: Final answer
    x = 161,229.45

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.