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Finding the Fourth Proportional to 167,124, 230,631.12 and 91,672.68

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Solution

The fourth proportional to 167,124, 230,631.12 and 91,672.68 is: 126,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,124 : 230,631.12 = 91,672.68 : x
  2. Step 2: Convert to fraction form
    167,124/230,631.12 = 91,672.68/x
  3. Step 3: Cross multiply
    167,124x = 230,631.12 × 91,672.68
  4. Step 4: Simplify right side
    167,124x = 21,142,572,861.80
  5. Step 5: Solve for x
    x = 21,142,572,861.80/167,124
  6. Step 6: Final answer
    x = 126,508.30

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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.