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Finding the Fourth Proportional to 70,489.70, 105,754.07 and 32,550.56

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Solution

The fourth proportional to 70,489.70, 105,754.07 and 32,550.56 is: 48,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,489.70 : 105,754.07 = 32,550.56 : x
  2. Step 2: Convert to fraction form
    70,489.70/105,754.07 = 32,550.56/x
  3. Step 3: Cross multiply
    70,489.70x = 105,754.07 × 32,550.56
  4. Step 4: Simplify right side
    70,489.70x = 3,442,353,509.26
  5. Step 5: Solve for x
    x = 3,442,353,509.26/70,489.70
  6. Step 6: Final answer
    x = 48,834.85

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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.