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Finding the Third Proportional to 75,715 and 166,658

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Solution

The third proportional to 75,715 and 166,658 is: 366,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,715 : 166,658 = 166,658 : x
  2. Step 2: Convert to fraction form
    75,715/166,658 = 166,658/x
  3. Step 3: Cross multiply
    75,715x = 166,658 × 166,658
  4. Step 4: Simplify right side
    75,715x = 27,774,888,964
  5. Step 5: Solve for x
    x = 27,774,888,964/75,715
  6. Step 6: Final answer
    x = 366,834.70

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.