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Finding the Fourth Proportional to 355,791.26, 491,152.25 and 226,902.68

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Solution

The fourth proportional to 355,791.26, 491,152.25 and 226,902.68 is: 313,227.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,791.26 : 491,152.25 = 226,902.68 : x
  2. Step 2: Convert to fraction form
    355,791.26/491,152.25 = 226,902.68/x
  3. Step 3: Cross multiply
    355,791.26x = 491,152.25 × 226,902.68
  4. Step 4: Simplify right side
    355,791.26x = 111,443,758,222.76
  5. Step 5: Solve for x
    x = 111,443,758,222.76/355,791.26
  6. Step 6: Final answer
    x = 313,227.93

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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.