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Finding the Fourth Proportional to 267,891.99, 401,757.80 and 107,916.59

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Solution

The fourth proportional to 267,891.99, 401,757.80 and 107,916.59 is: 161,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,891.99 : 401,757.80 = 107,916.59 : x
  2. Step 2: Convert to fraction form
    267,891.99/401,757.80 = 107,916.59/x
  3. Step 3: Cross multiply
    267,891.99x = 401,757.80 × 107,916.59
  4. Step 4: Simplify right side
    267,891.99x = 43,356,329,233.53
  5. Step 5: Solve for x
    x = 43,356,329,233.53/267,891.99
  6. Step 6: Final answer
    x = 161,842.57

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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.