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Finding the Fourth Proportional to 201,620.57, 302,474.59 and 61,375.55

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Solution

The fourth proportional to 201,620.57, 302,474.59 and 61,375.55 is: 92,076.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,620.57 : 302,474.59 = 61,375.55 : x
  2. Step 2: Convert to fraction form
    201,620.57/302,474.59 = 61,375.55/x
  3. Step 3: Cross multiply
    201,620.57x = 302,474.59 × 61,375.55
  4. Step 4: Simplify right side
    201,620.57x = 18,564,544,020.90
  5. Step 5: Solve for x
    x = 18,564,544,020.90/201,620.57
  6. Step 6: Final answer
    x = 92,076.64

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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.