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Finding the Fourth Proportional to 339,843.23, 468,991.25 and 186,871.70

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Solution

The fourth proportional to 339,843.23, 468,991.25 and 186,871.70 is: 257,887.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,843.23 : 468,991.25 = 186,871.70 : x
  2. Step 2: Convert to fraction form
    339,843.23/468,991.25 = 186,871.70/x
  3. Step 3: Cross multiply
    339,843.23x = 468,991.25 × 186,871.70
  4. Step 4: Simplify right side
    339,843.23x = 87,641,188,893.31
  5. Step 5: Solve for x
    x = 87,641,188,893.31/339,843.23
  6. Step 6: Final answer
    x = 257,887.12

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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.