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Finding the Fourth Proportional to 114,540.82, 171,770.04 and 39,640.64

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Solution

The fourth proportional to 114,540.82, 171,770.04 and 39,640.64 is: 59,446.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,540.82 : 171,770.04 = 39,640.64 : x
  2. Step 2: Convert to fraction form
    114,540.82/171,770.04 = 39,640.64/x
  3. Step 3: Cross multiply
    114,540.82x = 171,770.04 × 39,640.64
  4. Step 4: Simplify right side
    114,540.82x = 6,809,074,318.43
  5. Step 5: Solve for x
    x = 6,809,074,318.43/114,540.82
  6. Step 6: Final answer
    x = 59,446.70

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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.