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Finding the Fourth Proportional to 192,189.52, 288,134.88 and 124,578.82

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Solution

The fourth proportional to 192,189.52, 288,134.88 and 124,578.82 is: 186,771.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,189.52 : 288,134.88 = 124,578.82 : x
  2. Step 2: Convert to fraction form
    192,189.52/288,134.88 = 124,578.82/x
  3. Step 3: Cross multiply
    192,189.52x = 288,134.88 × 124,578.82
  4. Step 4: Simplify right side
    192,189.52x = 35,895,503,351.24
  5. Step 5: Solve for x
    x = 35,895,503,351.24/192,189.52
  6. Step 6: Final answer
    x = 186,771.39

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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.