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Finding the Fourth Proportional to 221,243.75, 331,865.81 and 94,801.97

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Solution

The fourth proportional to 221,243.75, 331,865.81 and 94,801.97 is: 142,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,243.75 : 331,865.81 = 94,801.97 : x
  2. Step 2: Convert to fraction form
    221,243.75/331,865.81 = 94,801.97/x
  3. Step 3: Cross multiply
    221,243.75x = 331,865.81 × 94,801.97
  4. Step 4: Simplify right side
    221,243.75x = 31,461,532,563.65
  5. Step 5: Solve for x
    x = 31,461,532,563.65/221,243.75
  6. Step 6: Final answer
    x = 142,203.03

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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.