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Finding the Fourth Proportional to 266,764.80, 400,438.80 and 167,037.60

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Solution

The fourth proportional to 266,764.80, 400,438.80 and 167,037.60 is: 250,738.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,764.80 : 400,438.80 = 167,037.60 : x
  2. Step 2: Convert to fraction form
    266,764.80/400,438.80 = 167,037.60/x
  3. Step 3: Cross multiply
    266,764.80x = 400,438.80 × 167,037.60
  4. Step 4: Simplify right side
    266,764.80x = 66,888,336,098.88
  5. Step 5: Solve for x
    x = 66,888,336,098.88/266,764.80
  6. Step 6: Final answer
    x = 250,738.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.