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Finding the Third Proportional to 147,912 and 221,613

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Solution

The third proportional to 147,912 and 221,613 is: 332,037.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,912 : 221,613 = 221,613 : x
  2. Step 2: Convert to fraction form
    147,912/221,613 = 221,613/x
  3. Step 3: Cross multiply
    147,912x = 221,613 × 221,613
  4. Step 4: Simplify right side
    147,912x = 49,112,321,769
  5. Step 5: Solve for x
    x = 49,112,321,769/147,912
  6. Step 6: Final answer
    x = 332,037.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.