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Finding the Fourth Proportional to 150,542.85, 225,814.28 and 126,048.45

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Solution

The fourth proportional to 150,542.85, 225,814.28 and 126,048.45 is: 189,072.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,542.85 : 225,814.28 = 126,048.45 : x
  2. Step 2: Convert to fraction form
    150,542.85/225,814.28 = 126,048.45/x
  3. Step 3: Cross multiply
    150,542.85x = 225,814.28 × 126,048.45
  4. Step 4: Simplify right side
    150,542.85x = 28,463,539,351.62
  5. Step 5: Solve for x
    x = 28,463,539,351.62/150,542.85
  6. Step 6: Final answer
    x = 189,072.68

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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.