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Finding the Fourth Proportional to 414,079.49, 621,120.22 and 125,893.67

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Solution

The fourth proportional to 414,079.49, 621,120.22 and 125,893.67 is: 188,840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,079.49 : 621,120.22 = 125,893.67 : x
  2. Step 2: Convert to fraction form
    414,079.49/621,120.22 = 125,893.67/x
  3. Step 3: Cross multiply
    414,079.49x = 621,120.22 × 125,893.67
  4. Step 4: Simplify right side
    414,079.49x = 78,195,105,148.69
  5. Step 5: Solve for x
    x = 78,195,105,148.69/414,079.49
  6. Step 6: Final answer
    x = 188,840.81

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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.