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Finding the Fourth Proportional to 339,160.40, 467,879.60 and 203,129

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Solution

The fourth proportional to 339,160.40, 467,879.60 and 203,129 is: 280,221.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,160.40 : 467,879.60 = 203,129 : x
  2. Step 2: Convert to fraction form
    339,160.40/467,879.60 = 203,129/x
  3. Step 3: Cross multiply
    339,160.40x = 467,879.60 × 203,129
  4. Step 4: Simplify right side
    339,160.40x = 95,039,914,252.76
  5. Step 5: Solve for x
    x = 95,039,914,252.76/339,160.40
  6. Step 6: Final answer
    x = 280,221.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.