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Finding the Fourth Proportional to 267,688.86, 400,997.88 and 161,013.90

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Solution

The fourth proportional to 267,688.86, 400,997.88 and 161,013.90 is: 241,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,688.86 : 400,997.88 = 161,013.90 : x
  2. Step 2: Convert to fraction form
    267,688.86/400,997.88 = 161,013.90/x
  3. Step 3: Cross multiply
    267,688.86x = 400,997.88 × 161,013.90
  4. Step 4: Simplify right side
    267,688.86x = 64,566,232,550.53
  5. Step 5: Solve for x
    x = 64,566,232,550.53/267,688.86
  6. Step 6: Final answer
    x = 241,198.80

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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.