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Finding the Fourth Proportional to 248,231.92, 342,561.56 and 135,055.48

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Solution

The fourth proportional to 248,231.92, 342,561.56 and 135,055.48 is: 186,377.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,231.92 : 342,561.56 = 135,055.48 : x
  2. Step 2: Convert to fraction form
    248,231.92/342,561.56 = 135,055.48/x
  3. Step 3: Cross multiply
    248,231.92x = 342,561.56 × 135,055.48
  4. Step 4: Simplify right side
    248,231.92x = 46,264,815,915.35
  5. Step 5: Solve for x
    x = 46,264,815,915.35/248,231.92
  6. Step 6: Final answer
    x = 186,377.38

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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.