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Finding the Third Proportional to 76,692.75 and 117,716.25

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Solution

The third proportional to 76,692.75 and 117,716.25 is: 180,683.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,692.75 : 117,716.25 = 117,716.25 : x
  2. Step 2: Convert to fraction form
    76,692.75/117,716.25 = 117,716.25/x
  3. Step 3: Cross multiply
    76,692.75x = 117,716.25 × 117,716.25
  4. Step 4: Simplify right side
    76,692.75x = 13,857,115,514.06
  5. Step 5: Solve for x
    x = 13,857,115,514.06/76,692.75
  6. Step 6: Final answer
    x = 180,683.51

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.