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Finding the Fourth Proportional to 248,296.92, 342,642.60 and 140,876.88

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Solution

The fourth proportional to 248,296.92, 342,642.60 and 140,876.88 is: 194,406.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,296.92 : 342,642.60 = 140,876.88 : x
  2. Step 2: Convert to fraction form
    248,296.92/342,642.60 = 140,876.88/x
  3. Step 3: Cross multiply
    248,296.92x = 342,642.60 × 140,876.88
  4. Step 4: Simplify right side
    248,296.92x = 48,270,420,443.09
  5. Step 5: Solve for x
    x = 48,270,420,443.09/248,296.92
  6. Step 6: Final answer
    x = 194,406.04

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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.