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Finding the Fourth Proportional to 267,929.44, 401,894.15 and 90,561

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Solution

The fourth proportional to 267,929.44, 401,894.15 and 90,561 is: 135,841.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,929.44 : 401,894.15 = 90,561 : x
  2. Step 2: Convert to fraction form
    267,929.44/401,894.15 = 90,561/x
  3. Step 3: Cross multiply
    267,929.44x = 401,894.15 × 90,561
  4. Step 4: Simplify right side
    267,929.44x = 36,395,936,344.55
  5. Step 5: Solve for x
    x = 36,395,936,344.55/267,929.44
  6. Step 6: Final answer
    x = 135,841.50

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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.