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Finding the Fourth Proportional to 193,418.96, 266,930.24 and 111,750.71

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Solution

The fourth proportional to 193,418.96, 266,930.24 and 111,750.71 is: 154,222.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,418.96 : 266,930.24 = 111,750.71 : x
  2. Step 2: Convert to fraction form
    193,418.96/266,930.24 = 111,750.71/x
  3. Step 3: Cross multiply
    193,418.96x = 266,930.24 × 111,750.71
  4. Step 4: Simplify right side
    193,418.96x = 29,829,641,947.07
  5. Step 5: Solve for x
    x = 29,829,641,947.07/193,418.96
  6. Step 6: Final answer
    x = 154,222.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.