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Finding the Fourth Proportional to 342,019.44, 471,985.38 and 191,116.44

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Solution

The fourth proportional to 342,019.44, 471,985.38 and 191,116.44 is: 263,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,019.44 : 471,985.38 = 191,116.44 : x
  2. Step 2: Convert to fraction form
    342,019.44/471,985.38 = 191,116.44/x
  3. Step 3: Cross multiply
    342,019.44x = 471,985.38 × 191,116.44
  4. Step 4: Simplify right side
    342,019.44x = 90,204,165,557.65
  5. Step 5: Solve for x
    x = 90,204,165,557.65/342,019.44
  6. Step 6: Final answer
    x = 263,739.88

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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.