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Finding the Fourth Proportional to 331,951.72, 458,132.08 and 188,733.20

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Solution

The fourth proportional to 331,951.72, 458,132.08 and 188,733.20 is: 260,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,951.72 : 458,132.08 = 188,733.20 : x
  2. Step 2: Convert to fraction form
    331,951.72/458,132.08 = 188,733.20/x
  3. Step 3: Cross multiply
    331,951.72x = 458,132.08 × 188,733.20
  4. Step 4: Simplify right side
    331,951.72x = 86,464,733,481.06
  5. Step 5: Solve for x
    x = 86,464,733,481.06/331,951.72
  6. Step 6: Final answer
    x = 260,473.82

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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.