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Finding the Fourth Proportional to 133,763.70, 200,645.55 and 125,469.30

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Solution

The fourth proportional to 133,763.70, 200,645.55 and 125,469.30 is: 188,203.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,763.70 : 200,645.55 = 125,469.30 : x
  2. Step 2: Convert to fraction form
    133,763.70/200,645.55 = 125,469.30/x
  3. Step 3: Cross multiply
    133,763.70x = 200,645.55 × 125,469.30
  4. Step 4: Simplify right side
    133,763.70x = 25,174,856,706.62
  5. Step 5: Solve for x
    x = 25,174,856,706.62/133,763.70
  6. Step 6: Final answer
    x = 188,203.95

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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.