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Finding the Fourth Proportional to 248,441.22, 342,843.51 and 145,093.20

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Solution

The fourth proportional to 248,441.22, 342,843.51 and 145,093.20 is: 200,225.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,441.22 : 342,843.51 = 145,093.20 : x
  2. Step 2: Convert to fraction form
    248,441.22/342,843.51 = 145,093.20/x
  3. Step 3: Cross multiply
    248,441.22x = 342,843.51 × 145,093.20
  4. Step 4: Simplify right side
    248,441.22x = 49,744,261,965.13
  5. Step 5: Solve for x
    x = 49,744,261,965.13/248,441.22
  6. Step 6: Final answer
    x = 200,225.48

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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.