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Finding the Fourth Proportional to 267,704.02, 401,593.06 and 90,261.78

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Solution

The fourth proportional to 267,704.02, 401,593.06 and 90,261.78 is: 135,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,704.02 : 401,593.06 = 90,261.78 : x
  2. Step 2: Convert to fraction form
    267,704.02/401,593.06 = 90,261.78/x
  3. Step 3: Cross multiply
    267,704.02x = 401,593.06 × 90,261.78
  4. Step 4: Simplify right side
    267,704.02x = 36,248,504,431.25
  5. Step 5: Solve for x
    x = 36,248,504,431.25/267,704.02
  6. Step 6: Final answer
    x = 135,405.16

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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.