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Finding the Fourth Proportional to 351,691.82, 485,330.90 and 190,537.26

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Solution

The fourth proportional to 351,691.82, 485,330.90 and 190,537.26 is: 262,939.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,691.82 : 485,330.90 = 190,537.26 : x
  2. Step 2: Convert to fraction form
    351,691.82/485,330.90 = 190,537.26/x
  3. Step 3: Cross multiply
    351,691.82x = 485,330.90 × 190,537.26
  4. Step 4: Simplify right side
    351,691.82x = 92,473,619,879.33
  5. Step 5: Solve for x
    x = 92,473,619,879.33/351,691.82
  6. Step 6: Final answer
    x = 262,939.35

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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.