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Finding the Fourth Proportional to 266,198.37, 399,059.55 and 97,679.58

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Solution

The fourth proportional to 266,198.37, 399,059.55 and 97,679.58 is: 146,432.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,198.37 : 399,059.55 = 97,679.58 : x
  2. Step 2: Convert to fraction form
    266,198.37/399,059.55 = 97,679.58/x
  3. Step 3: Cross multiply
    266,198.37x = 399,059.55 × 97,679.58
  4. Step 4: Simplify right side
    266,198.37x = 38,979,969,238.99
  5. Step 5: Solve for x
    x = 38,979,969,238.99/266,198.37
  6. Step 6: Final answer
    x = 146,432.04

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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.