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Finding the Fourth Proportional to 228,846.54, 315,826.94 and 126,903.98

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Solution

The fourth proportional to 228,846.54, 315,826.94 and 126,903.98 is: 175,137.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,846.54 : 315,826.94 = 126,903.98 : x
  2. Step 2: Convert to fraction form
    228,846.54/315,826.94 = 126,903.98/x
  3. Step 3: Cross multiply
    228,846.54x = 315,826.94 × 126,903.98
  4. Step 4: Simplify right side
    228,846.54x = 40,079,693,463.57
  5. Step 5: Solve for x
    x = 40,079,693,463.57/228,846.54
  6. Step 6: Final answer
    x = 175,137.86

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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.