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Finding the Fourth Proportional to 339,661.91, 468,734.62 and 186,713.38

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Solution

The fourth proportional to 339,661.91, 468,734.62 and 186,713.38 is: 257,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,661.91 : 468,734.62 = 186,713.38 : x
  2. Step 2: Convert to fraction form
    339,661.91/468,734.62 = 186,713.38/x
  3. Step 3: Cross multiply
    339,661.91x = 468,734.62 × 186,713.38
  4. Step 4: Simplify right side
    339,661.91x = 87,519,023,584.60
  5. Step 5: Solve for x
    x = 87,519,023,584.60/339,661.91
  6. Step 6: Final answer
    x = 257,665.11

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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.