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Finding the Fourth Proportional to 192,227.76, 288,477.72 and 67,578.48

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Solution

The fourth proportional to 192,227.76, 288,477.72 and 67,578.48 is: 101,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,227.76 : 288,477.72 = 67,578.48 : x
  2. Step 2: Convert to fraction form
    192,227.76/288,477.72 = 67,578.48/x
  3. Step 3: Cross multiply
    192,227.76x = 288,477.72 × 67,578.48
  4. Step 4: Simplify right side
    192,227.76x = 19,494,885,831.47
  5. Step 5: Solve for x
    x = 19,494,885,831.47/192,227.76
  6. Step 6: Final answer
    x = 101,415.56

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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.