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Finding the Fourth Proportional to 333,918.54, 500,873.22 and 81,198.27

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Solution

The fourth proportional to 333,918.54, 500,873.22 and 81,198.27 is: 121,796.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,918.54 : 500,873.22 = 81,198.27 : x
  2. Step 2: Convert to fraction form
    333,918.54/500,873.22 = 81,198.27/x
  3. Step 3: Cross multiply
    333,918.54x = 500,873.22 × 81,198.27
  4. Step 4: Simplify right side
    333,918.54x = 40,670,038,953.33
  5. Step 5: Solve for x
    x = 40,670,038,953.33/333,918.54
  6. Step 6: Final answer
    x = 121,796.29

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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.