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Finding the Fourth Proportional to 248,396.37, 342,767.40 and 140,966.42

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Solution

The fourth proportional to 248,396.37, 342,767.40 and 140,966.42 is: 194,522.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,396.37 : 342,767.40 = 140,966.42 : x
  2. Step 2: Convert to fraction form
    248,396.37/342,767.40 = 140,966.42/x
  3. Step 3: Cross multiply
    248,396.37x = 342,767.40 × 140,966.42
  4. Step 4: Simplify right side
    248,396.37x = 48,318,691,556.87
  5. Step 5: Solve for x
    x = 48,318,691,556.87/248,396.37
  6. Step 6: Final answer
    x = 194,522.53

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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.