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Finding the Fourth Proportional to 234,131.87, 323,099.34 and 126,699.95

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Solution

The fourth proportional to 234,131.87, 323,099.34 and 126,699.95 is: 174,844.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,131.87 : 323,099.34 = 126,699.95 : x
  2. Step 2: Convert to fraction form
    234,131.87/323,099.34 = 126,699.95/x
  3. Step 3: Cross multiply
    234,131.87x = 323,099.34 × 126,699.95
  4. Step 4: Simplify right side
    234,131.87x = 40,936,670,223.03
  5. Step 5: Solve for x
    x = 40,936,670,223.03/234,131.87
  6. Step 6: Final answer
    x = 174,844.50

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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.