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Finding the Third Proportional to 213,642 and 332,118

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Solution

The third proportional to 213,642 and 332,118 is: 516,295.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,642 : 332,118 = 332,118 : x
  2. Step 2: Convert to fraction form
    213,642/332,118 = 332,118/x
  3. Step 3: Cross multiply
    213,642x = 332,118 × 332,118
  4. Step 4: Simplify right side
    213,642x = 110,302,365,924
  5. Step 5: Solve for x
    x = 110,302,365,924/213,642
  6. Step 6: Final answer
    x = 516,295.33

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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.