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Finding the Fourth Proportional to 267,531.99, 401,254.25 and 80,499.75

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Solution

The fourth proportional to 267,531.99, 401,254.25 and 80,499.75 is: 120,736.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,531.99 : 401,254.25 = 80,499.75 : x
  2. Step 2: Convert to fraction form
    267,531.99/401,254.25 = 80,499.75/x
  3. Step 3: Cross multiply
    267,531.99x = 401,254.25 × 80,499.75
  4. Step 4: Simplify right side
    267,531.99x = 32,300,866,408.94
  5. Step 5: Solve for x
    x = 32,300,866,408.94/267,531.99
  6. Step 6: Final answer
    x = 120,736.46

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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.