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Finding the Fourth Proportional to 201,930.67, 302,896.01 and 68,742.37

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Solution

The fourth proportional to 201,930.67, 302,896.01 and 68,742.37 is: 103,113.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,930.67 : 302,896.01 = 68,742.37 : x
  2. Step 2: Convert to fraction form
    201,930.67/302,896.01 = 68,742.37/x
  3. Step 3: Cross multiply
    201,930.67x = 302,896.01 × 68,742.37
  4. Step 4: Simplify right side
    201,930.67x = 20,821,789,590.94
  5. Step 5: Solve for x
    x = 20,821,789,590.94/201,930.67
  6. Step 6: Final answer
    x = 103,113.56

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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.