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Finding the Third Proportional to 75,472 and 170,408

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Solution

The third proportional to 75,472 and 170,408 is: 384,763.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,472 : 170,408 = 170,408 : x
  2. Step 2: Convert to fraction form
    75,472/170,408 = 170,408/x
  3. Step 3: Cross multiply
    75,472x = 170,408 × 170,408
  4. Step 4: Simplify right side
    75,472x = 29,038,886,464
  5. Step 5: Solve for x
    x = 29,038,886,464/75,472
  6. Step 6: Final answer
    x = 384,763.71

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.