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Finding the Fourth Proportional to 267,703.06, 401,591.64 and 90,260.83

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Solution

The fourth proportional to 267,703.06, 401,591.64 and 90,260.83 is: 135,403.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,703.06 : 401,591.64 = 90,260.83 : x
  2. Step 2: Convert to fraction form
    267,703.06/401,591.64 = 90,260.83/x
  3. Step 3: Cross multiply
    267,703.06x = 401,591.64 × 90,260.83
  4. Step 4: Simplify right side
    267,703.06x = 36,247,994,747.46
  5. Step 5: Solve for x
    x = 36,247,994,747.46/267,703.06
  6. Step 6: Final answer
    x = 135,403.74

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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.