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Finding the Third Proportional to 76,188 and 165,480

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Solution

The third proportional to 76,188 and 165,480 is: 359,421.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,188 : 165,480 = 165,480 : x
  2. Step 2: Convert to fraction form
    76,188/165,480 = 165,480/x
  3. Step 3: Cross multiply
    76,188x = 165,480 × 165,480
  4. Step 4: Simplify right side
    76,188x = 27,383,630,400
  5. Step 5: Solve for x
    x = 27,383,630,400/76,188
  6. Step 6: Final answer
    x = 359,421.83

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.