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Finding the Fourth Proportional to 267,695.44, 401,580.22 and 90,253.20

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Solution

The fourth proportional to 267,695.44, 401,580.22 and 90,253.20 is: 135,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,695.44 : 401,580.22 = 90,253.20 : x
  2. Step 2: Convert to fraction form
    267,695.44/401,580.22 = 90,253.20/x
  3. Step 3: Cross multiply
    267,695.44x = 401,580.22 × 90,253.20
  4. Step 4: Simplify right side
    267,695.44x = 36,243,899,911.70
  5. Step 5: Solve for x
    x = 36,243,899,911.70/267,695.44
  6. Step 6: Final answer
    x = 135,392.29

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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.