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Finding the Fourth Proportional to 192,121.65, 288,182.48 and 133,072.65

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Solution

The fourth proportional to 192,121.65, 288,182.48 and 133,072.65 is: 199,608.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,121.65 : 288,182.48 = 133,072.65 : x
  2. Step 2: Convert to fraction form
    192,121.65/288,182.48 = 133,072.65/x
  3. Step 3: Cross multiply
    192,121.65x = 288,182.48 × 133,072.65
  4. Step 4: Simplify right side
    192,121.65x = 38,349,205,631.81
  5. Step 5: Solve for x
    x = 38,349,205,631.81/192,121.65
  6. Step 6: Final answer
    x = 199,608.98

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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.