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Finding the Third Proportional to 98,136.50 and 212,869

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Solution

The third proportional to 98,136.50 and 212,869 is: 461,736.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,136.50 : 212,869 = 212,869 : x
  2. Step 2: Convert to fraction form
    98,136.50/212,869 = 212,869/x
  3. Step 3: Cross multiply
    98,136.50x = 212,869 × 212,869
  4. Step 4: Simplify right side
    98,136.50x = 45,313,211,161
  5. Step 5: Solve for x
    x = 45,313,211,161/98,136.50
  6. Step 6: Final answer
    x = 461,736.57

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.