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Finding the Third Proportional to 71,113.50 and 107,120.25

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Solution

The third proportional to 71,113.50 and 107,120.25 is: 161,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,113.50 : 107,120.25 = 107,120.25 : x
  2. Step 2: Convert to fraction form
    71,113.50/107,120.25 = 107,120.25/x
  3. Step 3: Cross multiply
    71,113.50x = 107,120.25 × 107,120.25
  4. Step 4: Simplify right side
    71,113.50x = 11,474,747,960.06
  5. Step 5: Solve for x
    x = 11,474,747,960.06/71,113.50
  6. Step 6: Final answer
    x = 161,358.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.