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Finding the Third Proportional to 140,168 and 211,710

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Solution

The third proportional to 140,168 and 211,710 is: 319,767.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,168 : 211,710 = 211,710 : x
  2. Step 2: Convert to fraction form
    140,168/211,710 = 211,710/x
  3. Step 3: Cross multiply
    140,168x = 211,710 × 211,710
  4. Step 4: Simplify right side
    140,168x = 44,821,124,100
  5. Step 5: Solve for x
    x = 44,821,124,100/140,168
  6. Step 6: Final answer
    x = 319,767.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.