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Finding the Third Proportional to 56,303 and 79,189

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Solution

The third proportional to 56,303 and 79,189 is: 111,377.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,303 : 79,189 = 79,189 : x
  2. Step 2: Convert to fraction form
    56,303/79,189 = 79,189/x
  3. Step 3: Cross multiply
    56,303x = 79,189 × 79,189
  4. Step 4: Simplify right side
    56,303x = 6,270,897,721
  5. Step 5: Solve for x
    x = 6,270,897,721/56,303
  6. Step 6: Final answer
    x = 111,377.68

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.