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Finding the Third Proportional to 66,723.75 and 103,912.88

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Solution

The third proportional to 66,723.75 and 103,912.88 is: 161,829.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,723.75 : 103,912.88 = 103,912.88 : x
  2. Step 2: Convert to fraction form
    66,723.75/103,912.88 = 103,912.88/x
  3. Step 3: Cross multiply
    66,723.75x = 103,912.88 × 103,912.88
  4. Step 4: Simplify right side
    66,723.75x = 10,797,885,590.77
  5. Step 5: Solve for x
    x = 10,797,885,590.77/66,723.75
  6. Step 6: Final answer
    x = 161,829.72

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.