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Finding the Fourth Proportional to 271,200.60, 406,808.10 and 84,216.60

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Solution

The fourth proportional to 271,200.60, 406,808.10 and 84,216.60 is: 126,327.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,200.60 : 406,808.10 = 84,216.60 : x
  2. Step 2: Convert to fraction form
    271,200.60/406,808.10 = 84,216.60/x
  3. Step 3: Cross multiply
    271,200.60x = 406,808.10 × 84,216.60
  4. Step 4: Simplify right side
    271,200.60x = 34,259,995,034.46
  5. Step 5: Solve for x
    x = 34,259,995,034.46/271,200.60
  6. Step 6: Final answer
    x = 126,327.14

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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.