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Finding the Fourth Proportional to 267,481.11, 401,283.15 and 87,572.32

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Solution

The fourth proportional to 267,481.11, 401,283.15 and 87,572.32 is: 131,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,481.11 : 401,283.15 = 87,572.32 : x
  2. Step 2: Convert to fraction form
    267,481.11/401,283.15 = 87,572.32/x
  3. Step 3: Cross multiply
    267,481.11x = 401,283.15 × 87,572.32
  4. Step 4: Simplify right side
    267,481.11x = 35,141,296,422.41
  5. Step 5: Solve for x
    x = 35,141,296,422.41/267,481.11
  6. Step 6: Final answer
    x = 131,378.61

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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.