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Finding the Fourth Proportional to 339,717.16, 468,815.64 and 186,761.78

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Solution

The fourth proportional to 339,717.16, 468,815.64 and 186,761.78 is: 257,734.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,717.16 : 468,815.64 = 186,761.78 : x
  2. Step 2: Convert to fraction form
    339,717.16/468,815.64 = 186,761.78/x
  3. Step 3: Cross multiply
    339,717.16x = 468,815.64 × 186,761.78
  4. Step 4: Simplify right side
    339,717.16x = 87,556,843,418.24
  5. Step 5: Solve for x
    x = 87,556,843,418.24/339,717.16
  6. Step 6: Final answer
    x = 257,734.53

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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.