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Finding the Third Proportional to 125,665 and 165,168

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Solution

The third proportional to 125,665 and 165,168 is: 217,088.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,665 : 165,168 = 165,168 : x
  2. Step 2: Convert to fraction form
    125,665/165,168 = 165,168/x
  3. Step 3: Cross multiply
    125,665x = 165,168 × 165,168
  4. Step 4: Simplify right side
    125,665x = 27,280,468,224
  5. Step 5: Solve for x
    x = 27,280,468,224/125,665
  6. Step 6: Final answer
    x = 217,088.83

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.