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Finding the Fourth Proportional to 223,735.37, 308,685.20 and 126,923.22

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Solution

The fourth proportional to 223,735.37, 308,685.20 and 126,923.22 is: 175,114.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,735.37 : 308,685.20 = 126,923.22 : x
  2. Step 2: Convert to fraction form
    223,735.37/308,685.20 = 126,923.22/x
  3. Step 3: Cross multiply
    223,735.37x = 308,685.20 × 126,923.22
  4. Step 4: Simplify right side
    223,735.37x = 39,179,318,915.73
  5. Step 5: Solve for x
    x = 39,179,318,915.73/223,735.37
  6. Step 6: Final answer
    x = 175,114.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.