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Finding the Fourth Proportional to 298,893.61, 412,467.87 and 162,928.77

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Solution

The fourth proportional to 298,893.61, 412,467.87 and 162,928.77 is: 224,838.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,893.61 : 412,467.87 = 162,928.77 : x
  2. Step 2: Convert to fraction form
    298,893.61/412,467.87 = 162,928.77/x
  3. Step 3: Cross multiply
    298,893.61x = 412,467.87 × 162,928.77
  4. Step 4: Simplify right side
    298,893.61x = 67,202,882,723.62
  5. Step 5: Solve for x
    x = 67,202,882,723.62/298,893.61
  6. Step 6: Final answer
    x = 224,838.81

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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.