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Finding the Fourth Proportional to 321,036.75, 443,029.77 and 185,069.95

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Solution

The fourth proportional to 321,036.75, 443,029.77 and 185,069.95 is: 255,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,036.75 : 443,029.77 = 185,069.95 : x
  2. Step 2: Convert to fraction form
    321,036.75/443,029.77 = 185,069.95/x
  3. Step 3: Cross multiply
    321,036.75x = 443,029.77 × 185,069.95
  4. Step 4: Simplify right side
    321,036.75x = 81,991,496,274.84
  5. Step 5: Solve for x
    x = 81,991,496,274.84/321,036.75
  6. Step 6: Final answer
    x = 255,395.98

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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.