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Finding the Fourth Proportional to 351,375.75, 527,078.21 and 102,057.75

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Solution

The fourth proportional to 351,375.75, 527,078.21 and 102,057.75 is: 153,090.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,375.75 : 527,078.21 = 102,057.75 : x
  2. Step 2: Convert to fraction form
    351,375.75/527,078.21 = 102,057.75/x
  3. Step 3: Cross multiply
    351,375.75x = 527,078.21 × 102,057.75
  4. Step 4: Simplify right side
    351,375.75x = 53,792,415,676.34
  5. Step 5: Solve for x
    x = 53,792,415,676.34/351,375.75
  6. Step 6: Final answer
    x = 153,090.86

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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.