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Finding the Fourth Proportional to 267,717.90, 401,549.49 and 90,226.47

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Solution

The fourth proportional to 267,717.90, 401,549.49 and 90,226.47 is: 135,330.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,717.90 : 401,549.49 = 90,226.47 : x
  2. Step 2: Convert to fraction form
    267,717.90/401,549.49 = 90,226.47/x
  3. Step 3: Cross multiply
    267,717.90x = 401,549.49 × 90,226.47
  4. Step 4: Simplify right side
    267,717.90x = 36,230,393,013.00
  5. Step 5: Solve for x
    x = 36,230,393,013.00/267,717.90
  6. Step 6: Final answer
    x = 135,330.48

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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.