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Finding the Fourth Proportional to 251,640.70, 347,261.22 and 187,397.44

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Solution

The fourth proportional to 251,640.70, 347,261.22 and 187,397.44 is: 258,606.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,640.70 : 347,261.22 = 187,397.44 : x
  2. Step 2: Convert to fraction form
    251,640.70/347,261.22 = 187,397.44/x
  3. Step 3: Cross multiply
    251,640.70x = 347,261.22 × 187,397.44
  4. Step 4: Simplify right side
    251,640.70x = 65,075,863,639.28
  5. Step 5: Solve for x
    x = 65,075,863,639.28/251,640.70
  6. Step 6: Final answer
    x = 258,606.27

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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.