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Finding the Third Proportional to 119,156 and 261,928

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Solution

The third proportional to 119,156 and 261,928 is: 575,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,156 : 261,928 = 261,928 : x
  2. Step 2: Convert to fraction form
    119,156/261,928 = 261,928/x
  3. Step 3: Cross multiply
    119,156x = 261,928 × 261,928
  4. Step 4: Simplify right side
    119,156x = 68,606,277,184
  5. Step 5: Solve for x
    x = 68,606,277,184/119,156
  6. Step 6: Final answer
    x = 575,768.55

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.