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Finding the Fourth Proportional to 301,243.86, 451,869.03 and 90,883.62

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Solution

The fourth proportional to 301,243.86, 451,869.03 and 90,883.62 is: 136,326.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,243.86 : 451,869.03 = 90,883.62 : x
  2. Step 2: Convert to fraction form
    301,243.86/451,869.03 = 90,883.62/x
  3. Step 3: Cross multiply
    301,243.86x = 451,869.03 × 90,883.62
  4. Step 4: Simplify right side
    301,243.86x = 41,067,493,212.29
  5. Step 5: Solve for x
    x = 41,067,493,212.29/301,243.86
  6. Step 6: Final answer
    x = 136,326.41

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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.