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Finding the Fourth Proportional to 339,761.55, 468,874.15 and 186,800.80

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Solution

The fourth proportional to 339,761.55, 468,874.15 and 186,800.80 is: 257,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,761.55 : 468,874.15 = 186,800.80 : x
  2. Step 2: Convert to fraction form
    339,761.55/468,874.15 = 186,800.80/x
  3. Step 3: Cross multiply
    339,761.55x = 468,874.15 × 186,800.80
  4. Step 4: Simplify right side
    339,761.55x = 87,586,066,610.03
  5. Step 5: Solve for x
    x = 87,586,066,610.03/339,761.55
  6. Step 6: Final answer
    x = 257,786.87

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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.