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Finding the Fourth Proportional to 167,231.77, 230,778.67 and 90,748.92

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Solution

The fourth proportional to 167,231.77, 230,778.67 and 90,748.92 is: 125,232.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,231.77 : 230,778.67 = 90,748.92 : x
  2. Step 2: Convert to fraction form
    167,231.77/230,778.67 = 90,748.92/x
  3. Step 3: Cross multiply
    167,231.77x = 230,778.67 × 90,748.92
  4. Step 4: Simplify right side
    167,231.77x = 20,942,915,061.54
  5. Step 5: Solve for x
    x = 20,942,915,061.54/167,231.77
  6. Step 6: Final answer
    x = 125,232.87

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1.5x scale

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.