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Finding the Third Proportional to 71,161.50 and 154,011

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Solution

The third proportional to 71,161.50 and 154,011 is: 333,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,161.50 : 154,011 = 154,011 : x
  2. Step 2: Convert to fraction form
    71,161.50/154,011 = 154,011/x
  3. Step 3: Cross multiply
    71,161.50x = 154,011 × 154,011
  4. Step 4: Simplify right side
    71,161.50x = 23,719,388,121
  5. Step 5: Solve for x
    x = 23,719,388,121/71,161.50
  6. Step 6: Final answer
    x = 333,317.71

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.