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Finding the Fourth Proportional to 68,033.46, 102,050.51 and 20,648.96

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Solution

The fourth proportional to 68,033.46, 102,050.51 and 20,648.96 is: 30,973.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,033.46 : 102,050.51 = 20,648.96 : x
  2. Step 2: Convert to fraction form
    68,033.46/102,050.51 = 20,648.96/x
  3. Step 3: Cross multiply
    68,033.46x = 102,050.51 × 20,648.96
  4. Step 4: Simplify right side
    68,033.46x = 2,107,236,758.90
  5. Step 5: Solve for x
    x = 2,107,236,758.90/68,033.46
  6. Step 6: Final answer
    x = 30,973.54

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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.