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Finding the Third Proportional to 99,556 and 214,946

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Solution

The third proportional to 99,556 and 214,946 is: 464,078.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,556 : 214,946 = 214,946 : x
  2. Step 2: Convert to fraction form
    99,556/214,946 = 214,946/x
  3. Step 3: Cross multiply
    99,556x = 214,946 × 214,946
  4. Step 4: Simplify right side
    99,556x = 46,201,782,916
  5. Step 5: Solve for x
    x = 46,201,782,916/99,556
  6. Step 6: Final answer
    x = 464,078.34

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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.