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Finding the Fourth Proportional to 201,231.07, 301,890.17 and 61,000.27

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Solution

The fourth proportional to 201,231.07, 301,890.17 and 61,000.27 is: 91,513.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,231.07 : 301,890.17 = 61,000.27 : x
  2. Step 2: Convert to fraction form
    201,231.07/301,890.17 = 61,000.27/x
  3. Step 3: Cross multiply
    201,231.07x = 301,890.17 × 61,000.27
  4. Step 4: Simplify right side
    201,231.07x = 18,415,381,880.35
  5. Step 5: Solve for x
    x = 18,415,381,880.35/201,231.07
  6. Step 6: Final answer
    x = 91,513.61

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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.