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Finding the Third Proportional to 75,714 and 105,891

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Solution

The third proportional to 75,714 and 105,891 is: 148,095.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,714 : 105,891 = 105,891 : x
  2. Step 2: Convert to fraction form
    75,714/105,891 = 105,891/x
  3. Step 3: Cross multiply
    75,714x = 105,891 × 105,891
  4. Step 4: Simplify right side
    75,714x = 11,212,903,881
  5. Step 5: Solve for x
    x = 11,212,903,881/75,714
  6. Step 6: Final answer
    x = 148,095.52

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.