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Finding the Fourth Proportional to 131,553.54, 197,313.21 and 52,668.54

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Solution

The fourth proportional to 131,553.54, 197,313.21 and 52,668.54 is: 78,995.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,553.54 : 197,313.21 = 52,668.54 : x
  2. Step 2: Convert to fraction form
    131,553.54/197,313.21 = 52,668.54/x
  3. Step 3: Cross multiply
    131,553.54x = 197,313.21 × 52,668.54
  4. Step 4: Simplify right side
    131,553.54x = 10,392,198,693.41
  5. Step 5: Solve for x
    x = 10,392,198,693.41/131,553.54
  6. Step 6: Final answer
    x = 78,995.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.