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Finding the Third Proportional to 75,728 and 164,560

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Solution

The third proportional to 75,728 and 164,560 is: 357,595.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,728 : 164,560 = 164,560 : x
  2. Step 2: Convert to fraction form
    75,728/164,560 = 164,560/x
  3. Step 3: Cross multiply
    75,728x = 164,560 × 164,560
  4. Step 4: Simplify right side
    75,728x = 27,079,993,600
  5. Step 5: Solve for x
    x = 27,079,993,600/75,728
  6. Step 6: Final answer
    x = 357,595.52

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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.