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Finding the Fourth Proportional to 267,901.19, 401,851.77 and 80,912.69

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Solution

The fourth proportional to 267,901.19, 401,851.77 and 80,912.69 is: 121,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,901.19 : 401,851.77 = 80,912.69 : x
  2. Step 2: Convert to fraction form
    267,901.19/401,851.77 = 80,912.69/x
  3. Step 3: Cross multiply
    267,901.19x = 401,851.77 × 80,912.69
  4. Step 4: Simplify right side
    267,901.19x = 32,514,906,886.22
  5. Step 5: Solve for x
    x = 32,514,906,886.22/267,901.19
  6. Step 6: Final answer
    x = 121,369.03

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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.