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Finding the Fourth Proportional to 235,789.54, 353,687.98 and 131,272.82

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Solution

The fourth proportional to 235,789.54, 353,687.98 and 131,272.82 is: 196,911.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,789.54 : 353,687.98 = 131,272.82 : x
  2. Step 2: Convert to fraction form
    235,789.54/353,687.98 = 131,272.82/x
  3. Step 3: Cross multiply
    235,789.54x = 353,687.98 × 131,272.82
  4. Step 4: Simplify right side
    235,789.54x = 46,429,618,534.70
  5. Step 5: Solve for x
    x = 46,429,618,534.70/235,789.54
  6. Step 6: Final answer
    x = 196,911.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.