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Finding the Fourth Proportional to 222,983.88, 307,732.91 and 126,187.80

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Solution

The fourth proportional to 222,983.88, 307,732.91 and 126,187.80 is: 174,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,983.88 : 307,732.91 = 126,187.80 : x
  2. Step 2: Convert to fraction form
    222,983.88/307,732.91 = 126,187.80/x
  3. Step 3: Cross multiply
    222,983.88x = 307,732.91 × 126,187.80
  4. Step 4: Simplify right side
    222,983.88x = 38,832,138,900.50
  5. Step 5: Solve for x
    x = 38,832,138,900.50/222,983.88
  6. Step 6: Final answer
    x = 174,147.74

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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.