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Finding the Fourth Proportional to 193,959.70, 290,944.44 and 53,719.54

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Solution

The fourth proportional to 193,959.70, 290,944.44 and 53,719.54 is: 80,580.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,959.70 : 290,944.44 = 53,719.54 : x
  2. Step 2: Convert to fraction form
    193,959.70/290,944.44 = 53,719.54/x
  3. Step 3: Cross multiply
    193,959.70x = 290,944.44 × 53,719.54
  4. Step 4: Simplify right side
    193,959.70x = 15,629,400,755.00
  5. Step 5: Solve for x
    x = 15,629,400,755.00/193,959.70
  6. Step 6: Final answer
    x = 80,580.66

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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.