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Finding the Fourth Proportional to 267,761.77, 401,362.45 and 90,207.44

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Solution

The fourth proportional to 267,761.77, 401,362.45 and 90,207.44 is: 135,216.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,761.77 : 401,362.45 = 90,207.44 : x
  2. Step 2: Convert to fraction form
    267,761.77/401,362.45 = 90,207.44/x
  3. Step 3: Cross multiply
    267,761.77x = 401,362.45 × 90,207.44
  4. Step 4: Simplify right side
    267,761.77x = 36,205,878,675.59
  5. Step 5: Solve for x
    x = 36,205,878,675.59/267,761.77
  6. Step 6: Final answer
    x = 135,216.76

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1.5x scale

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.