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Finding the Fourth Proportional to 339,961.20, 509,250.60 and 173,842.80

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Solution

The fourth proportional to 339,961.20, 509,250.60 and 173,842.80 is: 260,410.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,961.20 : 509,250.60 = 173,842.80 : x
  2. Step 2: Convert to fraction form
    339,961.20/509,250.60 = 173,842.80/x
  3. Step 3: Cross multiply
    339,961.20x = 509,250.60 × 173,842.80
  4. Step 4: Simplify right side
    339,961.20x = 88,529,550,205.68
  5. Step 5: Solve for x
    x = 88,529,550,205.68/339,961.20
  6. Step 6: Final answer
    x = 260,410.75

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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.