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Finding the Fourth Proportional to 252,990.80, 379,487.83 and 101,200.56

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Solution

The fourth proportional to 252,990.80, 379,487.83 and 101,200.56 is: 151,801.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,990.80 : 379,487.83 = 101,200.56 : x
  2. Step 2: Convert to fraction form
    252,990.80/379,487.83 = 101,200.56/x
  3. Step 3: Cross multiply
    252,990.80x = 379,487.83 × 101,200.56
  4. Step 4: Simplify right side
    252,990.80x = 38,404,380,909.18
  5. Step 5: Solve for x
    x = 38,404,380,909.18/252,990.80
  6. Step 6: Final answer
    x = 151,801.49

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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.