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Finding the Fourth Proportional to 339,761.27, 468,871.48 and 186,815.09

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Solution

The fourth proportional to 339,761.27, 468,871.48 and 186,815.09 is: 257,805.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,761.27 : 468,871.48 = 186,815.09 : x
  2. Step 2: Convert to fraction form
    339,761.27/468,871.48 = 186,815.09/x
  3. Step 3: Cross multiply
    339,761.27x = 468,871.48 × 186,815.09
  4. Step 4: Simplify right side
    339,761.27x = 87,592,267,734.63
  5. Step 5: Solve for x
    x = 87,592,267,734.63/339,761.27
  6. Step 6: Final answer
    x = 257,805.33

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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.