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Finding the Fourth Proportional to 351,797.58, 527,383.17 and 127,107.90

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Solution

The fourth proportional to 351,797.58, 527,383.17 and 127,107.90 is: 190,548.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,797.58 : 527,383.17 = 127,107.90 : x
  2. Step 2: Convert to fraction form
    351,797.58/527,383.17 = 127,107.90/x
  3. Step 3: Cross multiply
    351,797.58x = 527,383.17 × 127,107.90
  4. Step 4: Simplify right side
    351,797.58x = 67,034,567,234.04
  5. Step 5: Solve for x
    x = 67,034,567,234.04/351,797.58
  6. Step 6: Final answer
    x = 190,548.69

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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.