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Finding the Third Proportional to 75,260 and 163,478

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Solution

The third proportional to 75,260 and 163,478 is: 355,103.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,260 : 163,478 = 163,478 : x
  2. Step 2: Convert to fraction form
    75,260/163,478 = 163,478/x
  3. Step 3: Cross multiply
    75,260x = 163,478 × 163,478
  4. Step 4: Simplify right side
    75,260x = 26,725,056,484
  5. Step 5: Solve for x
    x = 26,725,056,484/75,260
  6. Step 6: Final answer
    x = 355,103.06

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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.