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Finding the Fourth Proportional to 262,375.14, 393,753.87 and 104,648.70

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Solution

The fourth proportional to 262,375.14, 393,753.87 and 104,648.70 is: 157,049.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,375.14 : 393,753.87 = 104,648.70 : x
  2. Step 2: Convert to fraction form
    262,375.14/393,753.87 = 104,648.70/x
  3. Step 3: Cross multiply
    262,375.14x = 393,753.87 × 104,648.70
  4. Step 4: Simplify right side
    262,375.14x = 41,205,830,615.47
  5. Step 5: Solve for x
    x = 41,205,830,615.47/262,375.14
  6. Step 6: Final answer
    x = 157,049.29

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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.