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Finding the Fourth Proportional to 267,257.10, 400,108.05 and 162,021.90

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Solution

The fourth proportional to 267,257.10, 400,108.05 and 162,021.90 is: 242,561.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,257.10 : 400,108.05 = 162,021.90 : x
  2. Step 2: Convert to fraction form
    267,257.10/400,108.05 = 162,021.90/x
  3. Step 3: Cross multiply
    267,257.10x = 400,108.05 × 162,021.90
  4. Step 4: Simplify right side
    267,257.10x = 64,826,266,466.30
  5. Step 5: Solve for x
    x = 64,826,266,466.30/267,257.10
  6. Step 6: Final answer
    x = 242,561.44

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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.