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Finding the Fourth Proportional to 318,751.74, 439,879.01 and 182,790.81

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Solution

The fourth proportional to 318,751.74, 439,879.01 and 182,790.81 is: 252,252.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,751.74 : 439,879.01 = 182,790.81 : x
  2. Step 2: Convert to fraction form
    318,751.74/439,879.01 = 182,790.81/x
  3. Step 3: Cross multiply
    318,751.74x = 439,879.01 × 182,790.81
  4. Step 4: Simplify right side
    318,751.74x = 80,405,839,625.94
  5. Step 5: Solve for x
    x = 80,405,839,625.94/318,751.74
  6. Step 6: Final answer
    x = 252,252.24

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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.