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Finding the Third Proportional to 75,311 and 163,019

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Solution

The third proportional to 75,311 and 163,019 is: 352,872.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,311 : 163,019 = 163,019 : x
  2. Step 2: Convert to fraction form
    75,311/163,019 = 163,019/x
  3. Step 3: Cross multiply
    75,311x = 163,019 × 163,019
  4. Step 4: Simplify right side
    75,311x = 26,575,194,361
  5. Step 5: Solve for x
    x = 26,575,194,361/75,311
  6. Step 6: Final answer
    x = 352,872.68

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.