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Finding the Fourth Proportional to 229,311.80, 343,287.30 and 170,408.60

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Solution

The fourth proportional to 229,311.80, 343,287.30 and 170,408.60 is: 255,107.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,311.80 : 343,287.30 = 170,408.60 : x
  2. Step 2: Convert to fraction form
    229,311.80/343,287.30 = 170,408.60/x
  3. Step 3: Cross multiply
    229,311.80x = 343,287.30 × 170,408.60
  4. Step 4: Simplify right side
    229,311.80x = 58,499,108,190.78
  5. Step 5: Solve for x
    x = 58,499,108,190.78/229,311.80
  6. Step 6: Final answer
    x = 255,107.27

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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.