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Finding the Fourth Proportional to 290,738.80, 436,122.60 and 150,770.80

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Solution

The fourth proportional to 290,738.80, 436,122.60 and 150,770.80 is: 226,163.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,738.80 : 436,122.60 = 150,770.80 : x
  2. Step 2: Convert to fraction form
    290,738.80/436,122.60 = 150,770.80/x
  3. Step 3: Cross multiply
    290,738.80x = 436,122.60 × 150,770.80
  4. Step 4: Simplify right side
    290,738.80x = 65,754,553,300.08
  5. Step 5: Solve for x
    x = 65,754,553,300.08/290,738.80
  6. Step 6: Final answer
    x = 226,163.67

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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.