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Finding the Fourth Proportional to 254,644.44, 381,385.32 and 121,618.44

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Solution

The fourth proportional to 254,644.44, 381,385.32 and 121,618.44 is: 182,150.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,644.44 : 381,385.32 = 121,618.44 : x
  2. Step 2: Convert to fraction form
    254,644.44/381,385.32 = 121,618.44/x
  3. Step 3: Cross multiply
    254,644.44x = 381,385.32 × 121,618.44
  4. Step 4: Simplify right side
    254,644.44x = 46,383,487,657.30
  5. Step 5: Solve for x
    x = 46,383,487,657.30/254,644.44
  6. Step 6: Final answer
    x = 182,150.01

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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.