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Finding the Fourth Proportional to 166,951.45, 230,391.70 and 91,499.77

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Solution

The fourth proportional to 166,951.45, 230,391.70 and 91,499.77 is: 126,268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,951.45 : 230,391.70 = 91,499.77 : x
  2. Step 2: Convert to fraction form
    166,951.45/230,391.70 = 91,499.77/x
  3. Step 3: Cross multiply
    166,951.45x = 230,391.70 × 91,499.77
  4. Step 4: Simplify right side
    166,951.45x = 21,080,787,559.91
  5. Step 5: Solve for x
    x = 21,080,787,559.91/166,951.45
  6. Step 6: Final answer
    x = 126,268.97

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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.