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Finding the Third Proportional to 100,656 and 220,248

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Solution

The third proportional to 100,656 and 220,248 is: 481,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,656 : 220,248 = 220,248 : x
  2. Step 2: Convert to fraction form
    100,656/220,248 = 220,248/x
  3. Step 3: Cross multiply
    100,656x = 220,248 × 220,248
  4. Step 4: Simplify right side
    100,656x = 48,509,181,504
  5. Step 5: Solve for x
    x = 48,509,181,504/100,656
  6. Step 6: Final answer
    x = 481,930.35

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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.