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Finding the Fourth Proportional to 263,406.98, 395,230.42 and 111,645.65

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Solution

The fourth proportional to 263,406.98, 395,230.42 and 111,645.65 is: 167,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,406.98 : 395,230.42 = 111,645.65 : x
  2. Step 2: Convert to fraction form
    263,406.98/395,230.42 = 111,645.65/x
  3. Step 3: Cross multiply
    263,406.98x = 395,230.42 × 111,645.65
  4. Step 4: Simplify right side
    263,406.98x = 44,125,757,140.67
  5. Step 5: Solve for x
    x = 44,125,757,140.67/263,406.98
  6. Step 6: Final answer
    x = 167,519.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.