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Finding the Fourth Proportional to 267,380.12, 401,159.52 and 87,473.79

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Solution

The fourth proportional to 267,380.12, 401,159.52 and 87,473.79 is: 131,239.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,380.12 : 401,159.52 = 87,473.79 : x
  2. Step 2: Convert to fraction form
    267,380.12/401,159.52 = 87,473.79/x
  3. Step 3: Cross multiply
    267,380.12x = 401,159.52 × 87,473.79
  4. Step 4: Simplify right side
    267,380.12x = 35,090,943,608.98
  5. Step 5: Solve for x
    x = 35,090,943,608.98/267,380.12
  6. Step 6: Final answer
    x = 131,239.91

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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.