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Finding the Fourth Proportional to 271,998.78, 375,350.86 and 151,136.96

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Solution

The fourth proportional to 271,998.78, 375,350.86 and 151,136.96 is: 208,564.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,998.78 : 375,350.86 = 151,136.96 : x
  2. Step 2: Convert to fraction form
    271,998.78/375,350.86 = 151,136.96/x
  3. Step 3: Cross multiply
    271,998.78x = 375,350.86 × 151,136.96
  4. Step 4: Simplify right side
    271,998.78x = 56,729,388,337.30
  5. Step 5: Solve for x
    x = 56,729,388,337.30/271,998.78
  6. Step 6: Final answer
    x = 208,564.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.