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Finding the Fourth Proportional to 267,349.89, 401,025.14 and 80,361.39

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Solution

The fourth proportional to 267,349.89, 401,025.14 and 80,361.39 is: 120,542.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,349.89 : 401,025.14 = 80,361.39 : x
  2. Step 2: Convert to fraction form
    267,349.89/401,025.14 = 80,361.39/x
  3. Step 3: Cross multiply
    267,349.89x = 401,025.14 × 80,361.39
  4. Step 4: Simplify right side
    267,349.89x = 32,226,939,530.77
  5. Step 5: Solve for x
    x = 32,226,939,530.77/267,349.89
  6. Step 6: Final answer
    x = 120,542.18

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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.