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Finding the Fourth Proportional to 234,231.74, 323,239.90 and 126,801.77

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Solution

The fourth proportional to 234,231.74, 323,239.90 and 126,801.77 is: 174,986.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,231.74 : 323,239.90 = 126,801.77 : x
  2. Step 2: Convert to fraction form
    234,231.74/323,239.90 = 126,801.77/x
  3. Step 3: Cross multiply
    234,231.74x = 323,239.90 × 126,801.77
  4. Step 4: Simplify right side
    234,231.74x = 40,987,389,838.42
  5. Step 5: Solve for x
    x = 40,987,389,838.42/234,231.74
  6. Step 6: Final answer
    x = 174,986.49

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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.