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Finding the Third Proportional to 75,049 and 105,553

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Solution

The third proportional to 75,049 and 105,553 is: 148,455.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,049 : 105,553 = 105,553 : x
  2. Step 2: Convert to fraction form
    75,049/105,553 = 105,553/x
  3. Step 3: Cross multiply
    75,049x = 105,553 × 105,553
  4. Step 4: Simplify right side
    75,049x = 11,141,435,809
  5. Step 5: Solve for x
    x = 11,141,435,809/75,049
  6. Step 6: Final answer
    x = 148,455.49

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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.