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Finding the Fourth Proportional to 267,029.18, 400,609.29 and 80,040.50

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Solution

The fourth proportional to 267,029.18, 400,609.29 and 80,040.50 is: 120,080.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,029.18 : 400,609.29 = 80,040.50 : x
  2. Step 2: Convert to fraction form
    267,029.18/400,609.29 = 80,040.50/x
  3. Step 3: Cross multiply
    267,029.18x = 400,609.29 × 80,040.50
  4. Step 4: Simplify right side
    267,029.18x = 32,064,967,876.25
  5. Step 5: Solve for x
    x = 32,064,967,876.25/267,029.18
  6. Step 6: Final answer
    x = 120,080.39

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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.