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Finding the Fourth Proportional to 271,256.60, 406,769.70 and 131,058.20

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Solution

The fourth proportional to 271,256.60, 406,769.70 and 131,058.20 is: 196,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,256.60 : 406,769.70 = 131,058.20 : x
  2. Step 2: Convert to fraction form
    271,256.60/406,769.70 = 131,058.20/x
  3. Step 3: Cross multiply
    271,256.60x = 406,769.70 × 131,058.20
  4. Step 4: Simplify right side
    271,256.60x = 53,310,504,696.54
  5. Step 5: Solve for x
    x = 53,310,504,696.54/271,256.60
  6. Step 6: Final answer
    x = 196,531.64

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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.