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Finding the Fourth Proportional to 169,872.30, 254,917.80 and 98,794.80

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Solution

The fourth proportional to 169,872.30, 254,917.80 and 98,794.80 is: 148,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,872.30 : 254,917.80 = 98,794.80 : x
  2. Step 2: Convert to fraction form
    169,872.30/254,917.80 = 98,794.80/x
  3. Step 3: Cross multiply
    169,872.30x = 254,917.80 × 98,794.80
  4. Step 4: Simplify right side
    169,872.30x = 25,184,553,067.44
  5. Step 5: Solve for x
    x = 25,184,553,067.44/169,872.30
  6. Step 6: Final answer
    x = 148,255.80

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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.