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Finding the Fourth Proportional to 298,661.40, 448,121.70 and 150,917.40

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Solution

The fourth proportional to 298,661.40, 448,121.70 and 150,917.40 is: 226,441.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,661.40 : 448,121.70 = 150,917.40 : x
  2. Step 2: Convert to fraction form
    298,661.40/448,121.70 = 150,917.40/x
  3. Step 3: Cross multiply
    298,661.40x = 448,121.70 × 150,917.40
  4. Step 4: Simplify right side
    298,661.40x = 67,629,361,847.58
  5. Step 5: Solve for x
    x = 67,629,361,847.58/298,661.40
  6. Step 6: Final answer
    x = 226,441.59

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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.