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Finding the Fourth Proportional to 267,645.22, 401,468.54 and 90,276.69

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Solution

The fourth proportional to 267,645.22, 401,468.54 and 90,276.69 is: 135,415.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,645.22 : 401,468.54 = 90,276.69 : x
  2. Step 2: Convert to fraction form
    267,645.22/401,468.54 = 90,276.69/x
  3. Step 3: Cross multiply
    267,645.22x = 401,468.54 × 90,276.69
  4. Step 4: Simplify right side
    267,645.22x = 36,243,250,930.33
  5. Step 5: Solve for x
    x = 36,243,250,930.33/267,645.22
  6. Step 6: Final answer
    x = 135,415.27

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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.