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Finding the Third Proportional to 166,310 and 256,026

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Solution

The third proportional to 166,310 and 256,026 is: 394,139.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,310 : 256,026 = 256,026 : x
  2. Step 2: Convert to fraction form
    166,310/256,026 = 256,026/x
  3. Step 3: Cross multiply
    166,310x = 256,026 × 256,026
  4. Step 4: Simplify right side
    166,310x = 65,549,312,676
  5. Step 5: Solve for x
    x = 65,549,312,676/166,310
  6. Step 6: Final answer
    x = 394,139.33

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.