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Finding the Fourth Proportional to 75,186, 112,791.69 and 25,270.83

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Solution

The fourth proportional to 75,186, 112,791.69 and 25,270.83 is: 37,910.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,186 : 112,791.69 = 25,270.83 : x
  2. Step 2: Convert to fraction form
    75,186/112,791.69 = 25,270.83/x
  3. Step 3: Cross multiply
    75,186x = 112,791.69 × 25,270.83
  4. Step 4: Simplify right side
    75,186x = 2,850,339,623.40
  5. Step 5: Solve for x
    x = 2,850,339,623.40/75,186
  6. Step 6: Final answer
    x = 37,910.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.