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Finding the Third Proportional to 141,242 and 220,197

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Solution

The third proportional to 141,242 and 220,197 is: 343,288.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,242 : 220,197 = 220,197 : x
  2. Step 2: Convert to fraction form
    141,242/220,197 = 220,197/x
  3. Step 3: Cross multiply
    141,242x = 220,197 × 220,197
  4. Step 4: Simplify right side
    141,242x = 48,486,718,809
  5. Step 5: Solve for x
    x = 48,486,718,809/141,242
  6. Step 6: Final answer
    x = 343,288.25

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.