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Finding the Third Proportional to 107,556 and 166,455

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Solution

The third proportional to 107,556 and 166,455 is: 257,607.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,556 : 166,455 = 166,455 : x
  2. Step 2: Convert to fraction form
    107,556/166,455 = 166,455/x
  3. Step 3: Cross multiply
    107,556x = 166,455 × 166,455
  4. Step 4: Simplify right side
    107,556x = 27,707,267,025
  5. Step 5: Solve for x
    x = 27,707,267,025/107,556
  6. Step 6: Final answer
    x = 257,607.82

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.