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Finding the Fourth Proportional to 168,393.95, 232,377.85 and 100,375.85

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Solution

The fourth proportional to 168,393.95, 232,377.85 and 100,375.85 is: 138,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,393.95 : 232,377.85 = 100,375.85 : x
  2. Step 2: Convert to fraction form
    168,393.95/232,377.85 = 100,375.85/x
  3. Step 3: Cross multiply
    168,393.95x = 232,377.85 × 100,375.85
  4. Step 4: Simplify right side
    168,393.95x = 23,325,124,214.92
  5. Step 5: Solve for x
    x = 23,325,124,214.92/168,393.95
  6. Step 6: Final answer
    x = 138,515.22

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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.