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Finding the Fourth Proportional to 192,315.88, 288,622.62 and 125,737.96

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Solution

The fourth proportional to 192,315.88, 288,622.62 and 125,737.96 is: 188,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,315.88 : 288,622.62 = 125,737.96 : x
  2. Step 2: Convert to fraction form
    192,315.88/288,622.62 = 125,737.96/x
  3. Step 3: Cross multiply
    192,315.88x = 288,622.62 × 125,737.96
  4. Step 4: Simplify right side
    192,315.88x = 36,290,819,448.66
  5. Step 5: Solve for x
    x = 36,290,819,448.66/192,315.88
  6. Step 6: Final answer
    x = 188,704.23

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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.