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Finding the Fourth Proportional to 345,336.74, 517,868.97 and 167,791.22

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Solution

The fourth proportional to 345,336.74, 517,868.97 and 167,791.22 is: 251,620.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,336.74 : 517,868.97 = 167,791.22 : x
  2. Step 2: Convert to fraction form
    345,336.74/517,868.97 = 167,791.22/x
  3. Step 3: Cross multiply
    345,336.74x = 517,868.97 × 167,791.22
  4. Step 4: Simplify right side
    345,336.74x = 86,893,866,276.44
  5. Step 5: Solve for x
    x = 86,893,866,276.44/345,336.74
  6. Step 6: Final answer
    x = 251,620.68

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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.