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Finding the Fourth Proportional to 321,046.74, 443,040.03 and 185,080.95

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Solution

The fourth proportional to 321,046.74, 443,040.03 and 185,080.95 is: 255,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,046.74 : 443,040.03 = 185,080.95 : x
  2. Step 2: Convert to fraction form
    321,046.74/443,040.03 = 185,080.95/x
  3. Step 3: Cross multiply
    321,046.74x = 443,040.03 × 185,080.95
  4. Step 4: Simplify right side
    321,046.74x = 81,998,269,640.43
  5. Step 5: Solve for x
    x = 81,998,269,640.43/321,046.74
  6. Step 6: Final answer
    x = 255,409.13

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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.