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Finding the Third Proportional to 174,458 and 261,903

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Solution

The third proportional to 174,458 and 261,903 is: 393,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,458 : 261,903 = 261,903 : x
  2. Step 2: Convert to fraction form
    174,458/261,903 = 261,903/x
  3. Step 3: Cross multiply
    174,458x = 261,903 × 261,903
  4. Step 4: Simplify right side
    174,458x = 68,593,181,409
  5. Step 5: Solve for x
    x = 68,593,181,409/174,458
  6. Step 6: Final answer
    x = 393,178.77

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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.