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Finding the Fourth Proportional to 248,894.70, 373,342.05 and 80,414.70

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Solution

The fourth proportional to 248,894.70, 373,342.05 and 80,414.70 is: 120,622.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,894.70 : 373,342.05 = 80,414.70 : x
  2. Step 2: Convert to fraction form
    248,894.70/373,342.05 = 80,414.70/x
  3. Step 3: Cross multiply
    248,894.70x = 373,342.05 × 80,414.70
  4. Step 4: Simplify right side
    248,894.70x = 30,022,188,948.14
  5. Step 5: Solve for x
    x = 30,022,188,948.14/248,894.70
  6. Step 6: Final answer
    x = 120,622.05

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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.