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Finding the Third Proportional to 98,208 and 214,992

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Solution

The third proportional to 98,208 and 214,992 is: 470,649.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,208 : 214,992 = 214,992 : x
  2. Step 2: Convert to fraction form
    98,208/214,992 = 214,992/x
  3. Step 3: Cross multiply
    98,208x = 214,992 × 214,992
  4. Step 4: Simplify right side
    98,208x = 46,221,560,064
  5. Step 5: Solve for x
    x = 46,221,560,064/98,208
  6. Step 6: Final answer
    x = 470,649.64

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.