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Finding the Fourth Proportional to 271,915.91, 375,237.21 and 151,057.49

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Solution

The fourth proportional to 271,915.91, 375,237.21 and 151,057.49 is: 208,455.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,915.91 : 375,237.21 = 151,057.49 : x
  2. Step 2: Convert to fraction form
    271,915.91/375,237.21 = 151,057.49/x
  3. Step 3: Cross multiply
    271,915.91x = 375,237.21 × 151,057.49
  4. Step 4: Simplify right side
    271,915.91x = 56,682,389,221.02
  5. Step 5: Solve for x
    x = 56,682,389,221.02/271,915.91
  6. Step 6: Final answer
    x = 208,455.59

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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.