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Finding the Fourth Proportional to 201,695.58, 302,540.60 and 68,668.61

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Solution

The fourth proportional to 201,695.58, 302,540.60 and 68,668.61 is: 103,001.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,695.58 : 302,540.60 = 68,668.61 : x
  2. Step 2: Convert to fraction form
    201,695.58/302,540.60 = 68,668.61/x
  3. Step 3: Cross multiply
    201,695.58x = 302,540.60 × 68,668.61
  4. Step 4: Simplify right side
    201,695.58x = 20,775,040,614.52
  5. Step 5: Solve for x
    x = 20,775,040,614.52/201,695.58
  6. Step 6: Final answer
    x = 103,001.96

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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.