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Finding the Fourth Proportional to 271,282.60, 406,808.70 and 131,084.20

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Solution

The fourth proportional to 271,282.60, 406,808.70 and 131,084.20 is: 196,570.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,282.60 : 406,808.70 = 131,084.20 : x
  2. Step 2: Convert to fraction form
    271,282.60/406,808.70 = 131,084.20/x
  3. Step 3: Cross multiply
    271,282.60x = 406,808.70 × 131,084.20
  4. Step 4: Simplify right side
    271,282.60x = 53,326,192,992.54
  5. Step 5: Solve for x
    x = 53,326,192,992.54/271,282.60
  6. Step 6: Final answer
    x = 196,570.64

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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.