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Finding the Fourth Proportional to 267,378.70, 401,080.08 and 87,474.37

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Solution

The fourth proportional to 267,378.70, 401,080.08 and 87,474.37 is: 131,215.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,378.70 : 401,080.08 = 87,474.37 : x
  2. Step 2: Convert to fraction form
    267,378.70/401,080.08 = 87,474.37/x
  3. Step 3: Cross multiply
    267,378.70x = 401,080.08 × 87,474.37
  4. Step 4: Simplify right side
    267,378.70x = 35,084,227,317.55
  5. Step 5: Solve for x
    x = 35,084,227,317.55/267,378.70
  6. Step 6: Final answer
    x = 131,215.49

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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.