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Finding the Fourth Proportional to 339,170.38, 468,031.71 and 188,255.50

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Solution

The fourth proportional to 339,170.38, 468,031.71 and 188,255.50 is: 259,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,170.38 : 468,031.71 = 188,255.50 : x
  2. Step 2: Convert to fraction form
    339,170.38/468,031.71 = 188,255.50/x
  3. Step 3: Cross multiply
    339,170.38x = 468,031.71 × 188,255.50
  4. Step 4: Simplify right side
    339,170.38x = 88,109,543,581.91
  5. Step 5: Solve for x
    x = 88,109,543,581.91/339,170.38
  6. Step 6: Final answer
    x = 259,779.59

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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.