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Finding the Third Proportional to 166,992 and 358,272

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Solution

The third proportional to 166,992 and 358,272 is: 768,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,992 : 358,272 = 358,272 : x
  2. Step 2: Convert to fraction form
    166,992/358,272 = 358,272/x
  3. Step 3: Cross multiply
    166,992x = 358,272 × 358,272
  4. Step 4: Simplify right side
    166,992x = 128,358,825,984
  5. Step 5: Solve for x
    x = 128,358,825,984/166,992
  6. Step 6: Final answer
    x = 768,652.55

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.