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Finding the Fourth Proportional to 267,550.64, 401,367.47 and 90,043.79

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Solution

The fourth proportional to 267,550.64, 401,367.47 and 90,043.79 is: 135,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,550.64 : 401,367.47 = 90,043.79 : x
  2. Step 2: Convert to fraction form
    267,550.64/401,367.47 = 90,043.79/x
  3. Step 3: Cross multiply
    267,550.64x = 401,367.47 × 90,043.79
  4. Step 4: Simplify right side
    267,550.64x = 36,140,648,734.71
  5. Step 5: Solve for x
    x = 36,140,648,734.71/267,550.64
  6. Step 6: Final answer
    x = 135,079.66

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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.