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Finding the Fourth Proportional to 248,858.75, 343,433.72 and 141,433.31

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Solution

The fourth proportional to 248,858.75, 343,433.72 and 141,433.31 is: 195,182.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,858.75 : 343,433.72 = 141,433.31 : x
  2. Step 2: Convert to fraction form
    248,858.75/343,433.72 = 141,433.31/x
  3. Step 3: Cross multiply
    248,858.75x = 343,433.72 × 141,433.31
  4. Step 4: Simplify right side
    248,858.75x = 48,572,967,078.05
  5. Step 5: Solve for x
    x = 48,572,967,078.05/248,858.75
  6. Step 6: Final answer
    x = 195,182.88

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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.