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Finding the Fourth Proportional to 131,662.80, 197,489.76 and 52,755.84

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Solution

The fourth proportional to 131,662.80, 197,489.76 and 52,755.84 is: 79,131.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,662.80 : 197,489.76 = 52,755.84 : x
  2. Step 2: Convert to fraction form
    131,662.80/197,489.76 = 52,755.84/x
  3. Step 3: Cross multiply
    131,662.80x = 197,489.76 × 52,755.84
  4. Step 4: Simplify right side
    131,662.80x = 10,418,738,180.20
  5. Step 5: Solve for x
    x = 10,418,738,180.20/131,662.80
  6. Step 6: Final answer
    x = 79,131.98

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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.