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Finding the Fourth Proportional to 150,306.70, 225,353.26 and 75,372.79

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Solution

The fourth proportional to 150,306.70, 225,353.26 and 75,372.79 is: 113,005.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,306.70 : 225,353.26 = 75,372.79 : x
  2. Step 2: Convert to fraction form
    150,306.70/225,353.26 = 75,372.79/x
  3. Step 3: Cross multiply
    150,306.70x = 225,353.26 × 75,372.79
  4. Step 4: Simplify right side
    150,306.70x = 16,985,503,941.80
  5. Step 5: Solve for x
    x = 16,985,503,941.80/150,306.70
  6. Step 6: Final answer
    x = 113,005.63

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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.