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Finding the Fourth Proportional to 70,201.62, 105,318.90 and 48,025.44

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Solution

The fourth proportional to 70,201.62, 105,318.90 and 48,025.44 is: 72,049.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,201.62 : 105,318.90 = 48,025.44 : x
  2. Step 2: Convert to fraction form
    70,201.62/105,318.90 = 48,025.44/x
  3. Step 3: Cross multiply
    70,201.62x = 105,318.90 × 48,025.44
  4. Step 4: Simplify right side
    70,201.62x = 5,057,986,512.82
  5. Step 5: Solve for x
    x = 5,057,986,512.82/70,201.62
  6. Step 6: Final answer
    x = 72,049.43

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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.