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Finding the Third Proportional to 102,921.75 and 222,246

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Solution

The third proportional to 102,921.75 and 222,246 is: 479,911.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,921.75 : 222,246 = 222,246 : x
  2. Step 2: Convert to fraction form
    102,921.75/222,246 = 222,246/x
  3. Step 3: Cross multiply
    102,921.75x = 222,246 × 222,246
  4. Step 4: Simplify right side
    102,921.75x = 49,393,284,516
  5. Step 5: Solve for x
    x = 49,393,284,516/102,921.75
  6. Step 6: Final answer
    x = 479,911.04

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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.