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Finding the Fourth Proportional to 166,830.75, 230,227.25 and 91,379.25

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Solution

The fourth proportional to 166,830.75, 230,227.25 and 91,379.25 is: 126,103.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,830.75 : 230,227.25 = 91,379.25 : x
  2. Step 2: Convert to fraction form
    166,830.75/230,227.25 = 91,379.25/x
  3. Step 3: Cross multiply
    166,830.75x = 230,227.25 × 91,379.25
  4. Step 4: Simplify right side
    166,830.75x = 21,037,992,977.67
  5. Step 5: Solve for x
    x = 21,037,992,977.67/166,830.75
  6. Step 6: Final answer
    x = 126,103.81

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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.