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Finding the Third Proportional to 161,700 and 349,212

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Solution

The third proportional to 161,700 and 349,212 is: 754,168.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,700 : 349,212 = 349,212 : x
  2. Step 2: Convert to fraction form
    161,700/349,212 = 349,212/x
  3. Step 3: Cross multiply
    161,700x = 349,212 × 349,212
  4. Step 4: Simplify right side
    161,700x = 121,949,020,944
  5. Step 5: Solve for x
    x = 121,949,020,944/161,700
  6. Step 6: Final answer
    x = 754,168.34

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.