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Finding the Third Proportional to 56,436 and 120,644

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Solution

The third proportional to 56,436 and 120,644 is: 257,902.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,436 : 120,644 = 120,644 : x
  2. Step 2: Convert to fraction form
    56,436/120,644 = 120,644/x
  3. Step 3: Cross multiply
    56,436x = 120,644 × 120,644
  4. Step 4: Simplify right side
    56,436x = 14,554,974,736
  5. Step 5: Solve for x
    x = 14,554,974,736/56,436
  6. Step 6: Final answer
    x = 257,902.31

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.