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Finding the Fourth Proportional to 114,431.40, 171,648.69 and 35,540.64

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Solution

The fourth proportional to 114,431.40, 171,648.69 and 35,540.64 is: 53,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,431.40 : 171,648.69 = 35,540.64 : x
  2. Step 2: Convert to fraction form
    114,431.40/171,648.69 = 35,540.64/x
  3. Step 3: Cross multiply
    114,431.40x = 171,648.69 × 35,540.64
  4. Step 4: Simplify right side
    114,431.40x = 6,100,504,297.76
  5. Step 5: Solve for x
    x = 6,100,504,297.76/114,431.40
  6. Step 6: Final answer
    x = 53,311.45

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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.