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Finding the Fourth Proportional to 192,600.28, 288,843.92 and 72,570.63

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Solution

The fourth proportional to 192,600.28, 288,843.92 and 72,570.63 is: 108,834.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,600.28 : 288,843.92 = 72,570.63 : x
  2. Step 2: Convert to fraction form
    192,600.28/288,843.92 = 72,570.63/x
  3. Step 3: Cross multiply
    192,600.28x = 288,843.92 × 72,570.63
  4. Step 4: Simplify right side
    192,600.28x = 20,961,584,883.22
  5. Step 5: Solve for x
    x = 20,961,584,883.22/192,600.28
  6. Step 6: Final answer
    x = 108,834.66

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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.