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Finding the Fourth Proportional to 267,146.64, 400,915.98 and 215,183.52

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Solution

The fourth proportional to 267,146.64, 400,915.98 and 215,183.52 is: 322,933.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,146.64 : 400,915.98 = 215,183.52 : x
  2. Step 2: Convert to fraction form
    267,146.64/400,915.98 = 215,183.52/x
  3. Step 3: Cross multiply
    267,146.64x = 400,915.98 × 215,183.52
  4. Step 4: Simplify right side
    267,146.64x = 86,270,511,800.65
  5. Step 5: Solve for x
    x = 86,270,511,800.65/267,146.64
  6. Step 6: Final answer
    x = 322,933.17

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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.