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Finding the Fourth Proportional to 251,847.90, 347,540.02 and 144,343.49

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Solution

The fourth proportional to 251,847.90, 347,540.02 and 144,343.49 is: 199,188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,847.90 : 347,540.02 = 144,343.49 : x
  2. Step 2: Convert to fraction form
    251,847.90/347,540.02 = 144,343.49/x
  3. Step 3: Cross multiply
    251,847.90x = 347,540.02 × 144,343.49
  4. Step 4: Simplify right side
    251,847.90x = 50,165,137,302.91
  5. Step 5: Solve for x
    x = 50,165,137,302.91/251,847.90
  6. Step 6: Final answer
    x = 199,188.23

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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.