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Finding the Fourth Proportional to 253,056.56, 379,690.26 and 111,003.86

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Solution

The fourth proportional to 253,056.56, 379,690.26 and 111,003.86 is: 166,552.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,056.56 : 379,690.26 = 111,003.86 : x
  2. Step 2: Convert to fraction form
    253,056.56/379,690.26 = 111,003.86/x
  3. Step 3: Cross multiply
    253,056.56x = 379,690.26 × 111,003.86
  4. Step 4: Simplify right side
    253,056.56x = 42,147,084,464.40
  5. Step 5: Solve for x
    x = 42,147,084,464.40/253,056.56
  6. Step 6: Final answer
    x = 166,552.03

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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.