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Finding the Third Proportional to 213,644 and 332,130

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Solution

The third proportional to 213,644 and 332,130 is: 516,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,644 : 332,130 = 332,130 : x
  2. Step 2: Convert to fraction form
    213,644/332,130 = 332,130/x
  3. Step 3: Cross multiply
    213,644x = 332,130 × 332,130
  4. Step 4: Simplify right side
    213,644x = 110,310,336,900
  5. Step 5: Solve for x
    x = 110,310,336,900/213,644
  6. Step 6: Final answer
    x = 516,327.80

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.