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Finding the Fourth Proportional to 342,598.52, 472,729.56 and 215,183.36

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Solution

The fourth proportional to 342,598.52, 472,729.56 and 215,183.36 is: 296,917.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,598.52 : 472,729.56 = 215,183.36 : x
  2. Step 2: Convert to fraction form
    342,598.52/472,729.56 = 215,183.36/x
  3. Step 3: Cross multiply
    342,598.52x = 472,729.56 × 215,183.36
  4. Step 4: Simplify right side
    342,598.52x = 101,723,535,092.12
  5. Step 5: Solve for x
    x = 101,723,535,092.12/342,598.52
  6. Step 6: Final answer
    x = 296,917.61

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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.