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Finding the Third Proportional to 166,128 and 354,006

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Solution

The third proportional to 166,128 and 354,006 is: 754,359.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,128 : 354,006 = 354,006 : x
  2. Step 2: Convert to fraction form
    166,128/354,006 = 354,006/x
  3. Step 3: Cross multiply
    166,128x = 354,006 × 354,006
  4. Step 4: Simplify right side
    166,128x = 125,320,248,036
  5. Step 5: Solve for x
    x = 125,320,248,036/166,128
  6. Step 6: Final answer
    x = 754,359.58

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.