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Finding the Fourth Proportional to 228,355.26, 315,431.46 and 175,295.94

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Solution

The fourth proportional to 228,355.26, 315,431.46 and 175,295.94 is: 242,139.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,355.26 : 315,431.46 = 175,295.94 : x
  2. Step 2: Convert to fraction form
    228,355.26/315,431.46 = 175,295.94/x
  3. Step 3: Cross multiply
    228,355.26x = 315,431.46 × 175,295.94
  4. Step 4: Simplify right side
    228,355.26x = 55,293,854,286.27
  5. Step 5: Solve for x
    x = 55,293,854,286.27/228,355.26
  6. Step 6: Final answer
    x = 242,139.61

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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.