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Finding the Fourth Proportional to 262,364.20, 393,351.90 and 112,481.80

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Solution

The fourth proportional to 262,364.20, 393,351.90 and 112,481.80 is: 168,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,364.20 : 393,351.90 = 112,481.80 : x
  2. Step 2: Convert to fraction form
    262,364.20/393,351.90 = 112,481.80/x
  3. Step 3: Cross multiply
    262,364.20x = 393,351.90 × 112,481.80
  4. Step 4: Simplify right side
    262,364.20x = 44,244,929,745.42
  5. Step 5: Solve for x
    x = 44,244,929,745.42/262,364.20
  6. Step 6: Final answer
    x = 168,639.36

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1.5x scale

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.