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Finding the Fourth Proportional to 251,771.02, 347,448.44 and 137,052.97

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Solution

The fourth proportional to 251,771.02, 347,448.44 and 137,052.97 is: 189,135.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,771.02 : 347,448.44 = 137,052.97 : x
  2. Step 2: Convert to fraction form
    251,771.02/347,448.44 = 137,052.97/x
  3. Step 3: Cross multiply
    251,771.02x = 347,448.44 × 137,052.97
  4. Step 4: Simplify right side
    251,771.02x = 47,618,840,097.88
  5. Step 5: Solve for x
    x = 47,618,840,097.88/251,771.02
  6. Step 6: Final answer
    x = 189,135.51

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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.