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Finding the Fourth Proportional to 135,902.40, 203,855.72 and 41,133.61

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Solution

The fourth proportional to 135,902.40, 203,855.72 and 41,133.61 is: 61,701.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,902.40 : 203,855.72 = 41,133.61 : x
  2. Step 2: Convert to fraction form
    135,902.40/203,855.72 = 41,133.61/x
  3. Step 3: Cross multiply
    135,902.40x = 203,855.72 × 41,133.61
  4. Step 4: Simplify right side
    135,902.40x = 8,385,321,682.75
  5. Step 5: Solve for x
    x = 8,385,321,682.75/135,902.40
  6. Step 6: Final answer
    x = 61,701.06

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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.