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Finding the Fourth Proportional to 324,394.77, 486,605.68 and 111,309.19

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Solution

The fourth proportional to 324,394.77, 486,605.68 and 111,309.19 is: 166,968.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,394.77 : 486,605.68 = 111,309.19 : x
  2. Step 2: Convert to fraction form
    324,394.77/486,605.68 = 111,309.19/x
  3. Step 3: Cross multiply
    324,394.77x = 486,605.68 × 111,309.19
  4. Step 4: Simplify right side
    324,394.77x = 54,163,682,595.41
  5. Step 5: Solve for x
    x = 54,163,682,595.41/324,394.77
  6. Step 6: Final answer
    x = 166,968.42

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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.