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Finding the Third Proportional to 50,420 and 106,000

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Solution

The third proportional to 50,420 and 106,000 is: 222,848.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,420 : 106,000 = 106,000 : x
  2. Step 2: Convert to fraction form
    50,420/106,000 = 106,000/x
  3. Step 3: Cross multiply
    50,420x = 106,000 × 106,000
  4. Step 4: Simplify right side
    50,420x = 11,236,000,000
  5. Step 5: Solve for x
    x = 11,236,000,000/50,420
  6. Step 6: Final answer
    x = 222,848.08

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.