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Finding the Fourth Proportional to 331,960.72, 458,144.52 and 188,742.22

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Solution

The fourth proportional to 331,960.72, 458,144.52 and 188,742.22 is: 260,486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,960.72 : 458,144.52 = 188,742.22 : x
  2. Step 2: Convert to fraction form
    331,960.72/458,144.52 = 188,742.22/x
  3. Step 3: Cross multiply
    331,960.72x = 458,144.52 × 188,742.22
  4. Step 4: Simplify right side
    331,960.72x = 86,471,213,785.63
  5. Step 5: Solve for x
    x = 86,471,213,785.63/331,960.72
  6. Step 6: Final answer
    x = 260,486.28

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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.