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Finding the Fourth Proportional to 267,961.62, 401,416.92 and 155,405.37

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Solution

The fourth proportional to 267,961.62, 401,416.92 and 155,405.37 is: 232,803.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,961.62 : 401,416.92 = 155,405.37 : x
  2. Step 2: Convert to fraction form
    267,961.62/401,416.92 = 155,405.37/x
  3. Step 3: Cross multiply
    267,961.62x = 401,416.92 × 155,405.37
  4. Step 4: Simplify right side
    267,961.62x = 62,382,344,976.86
  5. Step 5: Solve for x
    x = 62,382,344,976.86/267,961.62
  6. Step 6: Final answer
    x = 232,803.28

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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.