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Finding the Fourth Proportional to 266,410.26, 399,606.18 and 66,732.37

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Solution

The fourth proportional to 266,410.26, 399,606.18 and 66,732.37 is: 100,096.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,410.26 : 399,606.18 = 66,732.37 : x
  2. Step 2: Convert to fraction form
    266,410.26/399,606.18 = 66,732.37/x
  3. Step 3: Cross multiply
    266,410.26x = 399,606.18 × 66,732.37
  4. Step 4: Simplify right side
    266,410.26x = 26,666,667,458.05
  5. Step 5: Solve for x
    x = 26,666,667,458.05/266,410.26
  6. Step 6: Final answer
    x = 100,096.25

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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.