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Finding the Fourth Proportional to 225,912.52, 338,858.54 and 99,518.96

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Solution

The fourth proportional to 225,912.52, 338,858.54 and 99,518.96 is: 149,273.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,912.52 : 338,858.54 = 99,518.96 : x
  2. Step 2: Convert to fraction form
    225,912.52/338,858.54 = 99,518.96/x
  3. Step 3: Cross multiply
    225,912.52x = 338,858.54 × 99,518.96
  4. Step 4: Simplify right side
    225,912.52x = 33,722,849,487.92
  5. Step 5: Solve for x
    x = 33,722,849,487.92/225,912.52
  6. Step 6: Final answer
    x = 149,273.93

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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.