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Finding the Fourth Proportional to 339,615.42, 468,679.83 and 186,650.85

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Solution

The fourth proportional to 339,615.42, 468,679.83 and 186,650.85 is: 257,583.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,615.42 : 468,679.83 = 186,650.85 : x
  2. Step 2: Convert to fraction form
    339,615.42/468,679.83 = 186,650.85/x
  3. Step 3: Cross multiply
    339,615.42x = 468,679.83 × 186,650.85
  4. Step 4: Simplify right side
    339,615.42x = 87,479,488,647.36
  5. Step 5: Solve for x
    x = 87,479,488,647.36/339,615.42
  6. Step 6: Final answer
    x = 257,583.97

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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.