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Finding the Fourth Proportional to 298,103.49, 447,087.94 and 84,866.67

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Solution

The fourth proportional to 298,103.49, 447,087.94 and 84,866.67 is: 127,280.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,103.49 : 447,087.94 = 84,866.67 : x
  2. Step 2: Convert to fraction form
    298,103.49/447,087.94 = 84,866.67/x
  3. Step 3: Cross multiply
    298,103.49x = 447,087.94 × 84,866.67
  4. Step 4: Simplify right side
    298,103.49x = 37,942,864,452.79
  5. Step 5: Solve for x
    x = 37,942,864,452.79/298,103.49
  6. Step 6: Final answer
    x = 127,280.85

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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.