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Finding the Fourth Proportional to 248,368.82, 342,739.44 and 140,932.44

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Solution

The fourth proportional to 248,368.82, 342,739.44 and 140,932.44 is: 194,481.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,368.82 : 342,739.44 = 140,932.44 : x
  2. Step 2: Convert to fraction form
    248,368.82/342,739.44 = 140,932.44/x
  3. Step 3: Cross multiply
    248,368.82x = 342,739.44 × 140,932.44
  4. Step 4: Simplify right side
    248,368.82x = 48,303,105,563.43
  5. Step 5: Solve for x
    x = 48,303,105,563.43/248,368.82
  6. Step 6: Final answer
    x = 194,481.36

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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.