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Finding the Fourth Proportional to 202,618.69, 303,928.04 and 77,930.53

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Solution

The fourth proportional to 202,618.69, 303,928.04 and 77,930.53 is: 116,895.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,618.69 : 303,928.04 = 77,930.53 : x
  2. Step 2: Convert to fraction form
    202,618.69/303,928.04 = 77,930.53/x
  3. Step 3: Cross multiply
    202,618.69x = 303,928.04 × 77,930.53
  4. Step 4: Simplify right side
    202,618.69x = 23,685,273,521.56
  5. Step 5: Solve for x
    x = 23,685,273,521.56/202,618.69
  6. Step 6: Final answer
    x = 116,895.80

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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.