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Finding the Third Proportional to 161,722 and 340,196

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Solution

The third proportional to 161,722 and 340,196 is: 715,631.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,722 : 340,196 = 340,196 : x
  2. Step 2: Convert to fraction form
    161,722/340,196 = 340,196/x
  3. Step 3: Cross multiply
    161,722x = 340,196 × 340,196
  4. Step 4: Simplify right side
    161,722x = 115,733,318,416
  5. Step 5: Solve for x
    x = 115,733,318,416/161,722
  6. Step 6: Final answer
    x = 715,631.26

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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.