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Finding the Fourth Proportional to 339,203.82, 508,879.53 and 102,540.34

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Solution

The fourth proportional to 339,203.82, 508,879.53 and 102,540.34 is: 153,832.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,203.82 : 508,879.53 = 102,540.34 : x
  2. Step 2: Convert to fraction form
    339,203.82/508,879.53 = 102,540.34/x
  3. Step 3: Cross multiply
    339,203.82x = 508,879.53 × 102,540.34
  4. Step 4: Simplify right side
    339,203.82x = 52,180,680,025.24
  5. Step 5: Solve for x
    x = 52,180,680,025.24/339,203.82
  6. Step 6: Final answer
    x = 153,832.82

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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.