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Finding the Fourth Proportional to 303,751.36, 455,711.53 and 132,942.61

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Solution

The fourth proportional to 303,751.36, 455,711.53 and 132,942.61 is: 199,450.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,751.36 : 455,711.53 = 132,942.61 : x
  2. Step 2: Convert to fraction form
    303,751.36/455,711.53 = 132,942.61/x
  3. Step 3: Cross multiply
    303,751.36x = 455,711.53 × 132,942.61
  4. Step 4: Simplify right side
    303,751.36x = 60,583,480,205.29
  5. Step 5: Solve for x
    x = 60,583,480,205.29/303,751.36
  6. Step 6: Final answer
    x = 199,450.89

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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.