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Finding the Fourth Proportional to 271,274.78, 406,963.20 and 109,181.22

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Solution

The fourth proportional to 271,274.78, 406,963.20 and 109,181.22 is: 163,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,274.78 : 406,963.20 = 109,181.22 : x
  2. Step 2: Convert to fraction form
    271,274.78/406,963.20 = 109,181.22/x
  3. Step 3: Cross multiply
    271,274.78x = 406,963.20 × 109,181.22
  4. Step 4: Simplify right side
    271,274.78x = 44,432,738,671.10
  5. Step 5: Solve for x
    x = 44,432,738,671.10/271,274.78
  6. Step 6: Final answer
    x = 163,792.37

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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.