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Finding the Fourth Proportional to 234,272.66, 323,294.90 and 126,840.43

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Solution

The fourth proportional to 234,272.66, 323,294.90 and 126,840.43 is: 175,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,272.66 : 323,294.90 = 126,840.43 : x
  2. Step 2: Convert to fraction form
    234,272.66/323,294.90 = 126,840.43/x
  3. Step 3: Cross multiply
    234,272.66x = 323,294.90 × 126,840.43
  4. Step 4: Simplify right side
    234,272.66x = 41,006,863,902.72
  5. Step 5: Solve for x
    x = 41,006,863,902.72/234,272.66
  6. Step 6: Final answer
    x = 175,039.05

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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.