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Finding the Fourth Proportional to 339,805.80, 468,891 and 186,818.76

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Solution

The fourth proportional to 339,805.80, 468,891 and 186,818.76 is: 257,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,805.80 : 468,891 = 186,818.76 : x
  2. Step 2: Convert to fraction form
    339,805.80/468,891 = 186,818.76/x
  3. Step 3: Cross multiply
    339,805.80x = 468,891 × 186,818.76
  4. Step 4: Simplify right side
    339,805.80x = 87,597,635,195.16
  5. Step 5: Solve for x
    x = 87,597,635,195.16/339,805.80
  6. Step 6: Final answer
    x = 257,787.35

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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.