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Finding the Fourth Proportional to 228,923.92, 315,906.24 and 126,953.56

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Solution

The fourth proportional to 228,923.92, 315,906.24 and 126,953.56 is: 175,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,923.92 : 315,906.24 = 126,953.56 : x
  2. Step 2: Convert to fraction form
    228,923.92/315,906.24 = 126,953.56/x
  3. Step 3: Cross multiply
    228,923.92x = 315,906.24 × 126,953.56
  4. Step 4: Simplify right side
    228,923.92x = 40,105,421,794.21
  5. Step 5: Solve for x
    x = 40,105,421,794.21/228,923.92
  6. Step 6: Final answer
    x = 175,191.05

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1.5x scale

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.