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Finding the Fourth Proportional to 228,481.29, 315,305.46 and 126,510.03

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Solution

The fourth proportional to 228,481.29, 315,305.46 and 126,510.03 is: 174,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,481.29 : 315,305.46 = 126,510.03 : x
  2. Step 2: Convert to fraction form
    228,481.29/315,305.46 = 126,510.03/x
  3. Step 3: Cross multiply
    228,481.29x = 315,305.46 × 126,510.03
  4. Step 4: Simplify right side
    228,481.29x = 39,889,303,203.76
  5. Step 5: Solve for x
    x = 39,889,303,203.76/228,481.29
  6. Step 6: Final answer
    x = 174,584.55

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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.