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Finding the Fourth Proportional to 293,906.60, 405,215.66 and 190,357.86

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Solution

The fourth proportional to 293,906.60, 405,215.66 and 190,357.86 is: 262,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,906.60 : 405,215.66 = 190,357.86 : x
  2. Step 2: Convert to fraction form
    293,906.60/405,215.66 = 190,357.86/x
  3. Step 3: Cross multiply
    293,906.60x = 405,215.66 × 190,357.86
  4. Step 4: Simplify right side
    293,906.60x = 77,135,985,876.09
  5. Step 5: Solve for x
    x = 77,135,985,876.09/293,906.60
  6. Step 6: Final answer
    x = 262,450.68

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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.