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Finding the Fourth Proportional to 227,668.26, 341,518.90 and 87,426.90

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Solution

The fourth proportional to 227,668.26, 341,518.90 and 87,426.90 is: 131,146.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,668.26 : 341,518.90 = 87,426.90 : x
  2. Step 2: Convert to fraction form
    227,668.26/341,518.90 = 87,426.90/x
  3. Step 3: Cross multiply
    227,668.26x = 341,518.90 × 87,426.90
  4. Step 4: Simplify right side
    227,668.26x = 29,857,938,718.41
  5. Step 5: Solve for x
    x = 29,857,938,718.41/227,668.26
  6. Step 6: Final answer
    x = 131,146.69

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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.