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Finding the Fourth Proportional to 135,361.68, 203,077.08 and 40,591.50

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Solution

The fourth proportional to 135,361.68, 203,077.08 and 40,591.50 is: 60,897.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,361.68 : 203,077.08 = 40,591.50 : x
  2. Step 2: Convert to fraction form
    135,361.68/203,077.08 = 40,591.50/x
  3. Step 3: Cross multiply
    135,361.68x = 203,077.08 × 40,591.50
  4. Step 4: Simplify right side
    135,361.68x = 8,243,203,292.82
  5. Step 5: Solve for x
    x = 8,243,203,292.82/135,361.68
  6. Step 6: Final answer
    x = 60,897.61

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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.