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Finding the Fourth Proportional to 324,604.22, 486,860.90 and 111,368.61

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Solution

The fourth proportional to 324,604.22, 486,860.90 and 111,368.61 is: 167,037.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,604.22 : 486,860.90 = 111,368.61 : x
  2. Step 2: Convert to fraction form
    324,604.22/486,860.90 = 111,368.61/x
  3. Step 3: Cross multiply
    324,604.22x = 486,860.90 × 111,368.61
  4. Step 4: Simplify right side
    324,604.22x = 54,221,021,139.51
  5. Step 5: Solve for x
    x = 54,221,021,139.51/324,604.22
  6. Step 6: Final answer
    x = 167,037.33

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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.