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Finding the Third Proportional to 75,131.72 and 117,005.77

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Solution

The third proportional to 75,131.72 and 117,005.77 is: 182,217.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,131.72 : 117,005.77 = 117,005.77 : x
  2. Step 2: Convert to fraction form
    75,131.72/117,005.77 = 117,005.77/x
  3. Step 3: Cross multiply
    75,131.72x = 117,005.77 × 117,005.77
  4. Step 4: Simplify right side
    75,131.72x = 13,690,349,189.49
  5. Step 5: Solve for x
    x = 13,690,349,189.49/75,131.72
  6. Step 6: Final answer
    x = 182,217.97

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.