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Finding the Fourth Proportional to 339,805.20, 468,921.18 and 186,843.24

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Solution

The fourth proportional to 339,805.20, 468,921.18 and 186,843.24 is: 257,838.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,805.20 : 468,921.18 = 186,843.24 : x
  2. Step 2: Convert to fraction form
    339,805.20/468,921.18 = 186,843.24/x
  3. Step 3: Cross multiply
    339,805.20x = 468,921.18 × 186,843.24
  4. Step 4: Simplify right side
    339,805.20x = 87,614,752,575.82
  5. Step 5: Solve for x
    x = 87,614,752,575.82/339,805.20
  6. Step 6: Final answer
    x = 257,838.17

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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.