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Finding the Fourth Proportional to 192,813.97, 288,717.95 and 155,168.41

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Solution

The fourth proportional to 192,813.97, 288,717.95 and 155,168.41 is: 232,347.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,813.97 : 288,717.95 = 155,168.41 : x
  2. Step 2: Convert to fraction form
    192,813.97/288,717.95 = 155,168.41/x
  3. Step 3: Cross multiply
    192,813.97x = 288,717.95 × 155,168.41
  4. Step 4: Simplify right side
    192,813.97x = 44,799,904,464.12
  5. Step 5: Solve for x
    x = 44,799,904,464.12/192,813.97
  6. Step 6: Final answer
    x = 232,347.81

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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.