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Finding the Fourth Proportional to 271,263.61, 406,974.57 and 121,468.87

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Solution

The fourth proportional to 271,263.61, 406,974.57 and 121,468.87 is: 182,238.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,263.61 : 406,974.57 = 121,468.87 : x
  2. Step 2: Convert to fraction form
    271,263.61/406,974.57 = 121,468.87/x
  3. Step 3: Cross multiply
    271,263.61x = 406,974.57 × 121,468.87
  4. Step 4: Simplify right side
    271,263.61x = 49,434,741,136.64
  5. Step 5: Solve for x
    x = 49,434,741,136.64/271,263.61
  6. Step 6: Final answer
    x = 182,238.75

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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.