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Finding the Fourth Proportional to 228,503.27, 315,330.65 and 126,526.54

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Solution

The fourth proportional to 228,503.27, 315,330.65 and 126,526.54 is: 174,604.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,503.27 : 315,330.65 = 126,526.54 : x
  2. Step 2: Convert to fraction form
    228,503.27/315,330.65 = 126,526.54/x
  3. Step 3: Cross multiply
    228,503.27x = 315,330.65 × 126,526.54
  4. Step 4: Simplify right side
    228,503.27x = 39,897,694,523.80
  5. Step 5: Solve for x
    x = 39,897,694,523.80/228,503.27
  6. Step 6: Final answer
    x = 174,604.48

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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.