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Finding the Fourth Proportional to 202,573.54, 279,546.89 and 111,929.68

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Solution

The fourth proportional to 202,573.54, 279,546.89 and 111,929.68 is: 154,460.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,573.54 : 279,546.89 = 111,929.68 : x
  2. Step 2: Convert to fraction form
    202,573.54/279,546.89 = 111,929.68/x
  3. Step 3: Cross multiply
    202,573.54x = 279,546.89 × 111,929.68
  4. Step 4: Simplify right side
    202,573.54x = 31,289,593,942.70
  5. Step 5: Solve for x
    x = 31,289,593,942.70/202,573.54
  6. Step 6: Final answer
    x = 154,460.42

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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.