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Finding the Fourth Proportional to 327,239.73, 490,804.92 and 90,606.33

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Solution

The fourth proportional to 327,239.73, 490,804.92 and 90,606.33 is: 135,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,239.73 : 490,804.92 = 90,606.33 : x
  2. Step 2: Convert to fraction form
    327,239.73/490,804.92 = 90,606.33/x
  3. Step 3: Cross multiply
    327,239.73x = 490,804.92 × 90,606.33
  4. Step 4: Simplify right side
    327,239.73x = 44,470,032,547.14
  5. Step 5: Solve for x
    x = 44,470,032,547.14/327,239.73
  6. Step 6: Final answer
    x = 135,894.36

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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.