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Finding the Fourth Proportional to 129,806.45, 194,727.90 and 41,050.70

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Solution

The fourth proportional to 129,806.45, 194,727.90 and 41,050.70 is: 61,581.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,806.45 : 194,727.90 = 41,050.70 : x
  2. Step 2: Convert to fraction form
    129,806.45/194,727.90 = 41,050.70/x
  3. Step 3: Cross multiply
    129,806.45x = 194,727.90 × 41,050.70
  4. Step 4: Simplify right side
    129,806.45x = 7,993,716,604.53
  5. Step 5: Solve for x
    x = 7,993,716,604.53/129,806.45
  6. Step 6: Final answer
    x = 61,581.81

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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.