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Finding the Fourth Proportional to 201,062.70, 301,584.45 and 67,929.90

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Solution

The fourth proportional to 201,062.70, 301,584.45 and 67,929.90 is: 101,891.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,062.70 : 301,584.45 = 67,929.90 : x
  2. Step 2: Convert to fraction form
    201,062.70/301,584.45 = 67,929.90/x
  3. Step 3: Cross multiply
    201,062.70x = 301,584.45 × 67,929.90
  4. Step 4: Simplify right side
    201,062.70x = 20,486,601,530.06
  5. Step 5: Solve for x
    x = 20,486,601,530.06/201,062.70
  6. Step 6: Final answer
    x = 101,891.61

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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.