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Finding the Third Proportional to 75,720.75 and 117,579

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Solution

The third proportional to 75,720.75 and 117,579 is: 182,576.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,720.75 : 117,579 = 117,579 : x
  2. Step 2: Convert to fraction form
    75,720.75/117,579 = 117,579/x
  3. Step 3: Cross multiply
    75,720.75x = 117,579 × 117,579
  4. Step 4: Simplify right side
    75,720.75x = 13,824,821,241
  5. Step 5: Solve for x
    x = 13,824,821,241/75,720.75
  6. Step 6: Final answer
    x = 182,576.39

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.