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Finding the Fourth Proportional to 221,175.42, 331,763.04 and 54,963.42

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Solution

The fourth proportional to 221,175.42, 331,763.04 and 54,963.42 is: 82,445.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,175.42 : 331,763.04 = 54,963.42 : x
  2. Step 2: Convert to fraction form
    221,175.42/331,763.04 = 54,963.42/x
  3. Step 3: Cross multiply
    221,175.42x = 331,763.04 × 54,963.42
  4. Step 4: Simplify right side
    221,175.42x = 18,234,831,308.00
  5. Step 5: Solve for x
    x = 18,234,831,308.00/221,175.42
  6. Step 6: Final answer
    x = 82,445.11

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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.