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Finding the Fourth Proportional to 170,027.21, 255,049.94 and 51,689.57

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Solution

The fourth proportional to 170,027.21, 255,049.94 and 51,689.57 is: 77,537.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,027.21 : 255,049.94 = 51,689.57 : x
  2. Step 2: Convert to fraction form
    170,027.21/255,049.94 = 51,689.57/x
  3. Step 3: Cross multiply
    170,027.21x = 255,049.94 × 51,689.57
  4. Step 4: Simplify right side
    170,027.21x = 13,183,420,581.10
  5. Step 5: Solve for x
    x = 13,183,420,581.10/170,027.21
  6. Step 6: Final answer
    x = 77,537.12

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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.