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Finding the Fourth Proportional to 339,358.82, 468,319.03 and 186,400.61

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Solution

The fourth proportional to 339,358.82, 468,319.03 and 186,400.61 is: 257,234.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,358.82 : 468,319.03 = 186,400.61 : x
  2. Step 2: Convert to fraction form
    339,358.82/468,319.03 = 186,400.61/x
  3. Step 3: Cross multiply
    339,358.82x = 468,319.03 × 186,400.61
  4. Step 4: Simplify right side
    339,358.82x = 87,294,950,059.01
  5. Step 5: Solve for x
    x = 87,294,950,059.01/339,358.82
  6. Step 6: Final answer
    x = 257,234.95

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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.