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Finding the Fourth Proportional to 228,754.06, 315,680.60 and 126,794.86

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Solution

The fourth proportional to 228,754.06, 315,680.60 and 126,794.86 is: 174,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,754.06 : 315,680.60 = 126,794.86 : x
  2. Step 2: Convert to fraction form
    228,754.06/315,680.60 = 126,794.86/x
  3. Step 3: Cross multiply
    228,754.06x = 315,680.60 × 126,794.86
  4. Step 4: Simplify right side
    228,754.06x = 40,026,677,009.50
  5. Step 5: Solve for x
    x = 40,026,677,009.50/228,754.06
  6. Step 6: Final answer
    x = 174,976.91

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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.