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Finding the Fourth Proportional to 228,347.92, 315,115.60 and 126,367.42

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Solution

The fourth proportional to 228,347.92, 315,115.60 and 126,367.42 is: 174,384.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,347.92 : 315,115.60 = 126,367.42 : x
  2. Step 2: Convert to fraction form
    228,347.92/315,115.60 = 126,367.42/x
  3. Step 3: Cross multiply
    228,347.92x = 315,115.60 × 126,367.42
  4. Step 4: Simplify right side
    228,347.92x = 39,820,346,738.76
  5. Step 5: Solve for x
    x = 39,820,346,738.76/228,347.92
  6. Step 6: Final answer
    x = 174,384.54

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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.