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Finding the Fourth Proportional to 248,239.22, 342,559.89 and 135,062.42

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Solution

The fourth proportional to 248,239.22, 342,559.89 and 135,062.42 is: 186,380.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,239.22 : 342,559.89 = 135,062.42 : x
  2. Step 2: Convert to fraction form
    248,239.22/342,559.89 = 135,062.42/x
  3. Step 3: Cross multiply
    248,239.22x = 342,559.89 × 135,062.42
  4. Step 4: Simplify right side
    248,239.22x = 46,266,967,738.33
  5. Step 5: Solve for x
    x = 46,266,967,738.33/248,239.22
  6. Step 6: Final answer
    x = 186,380.57

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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.