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Finding the Fourth Proportional to 321,908.61, 444,255.11 and 185,948.28

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Solution

The fourth proportional to 321,908.61, 444,255.11 and 185,948.28 is: 256,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,908.61 : 444,255.11 = 185,948.28 : x
  2. Step 2: Convert to fraction form
    321,908.61/444,255.11 = 185,948.28/x
  3. Step 3: Cross multiply
    321,908.61x = 444,255.11 × 185,948.28
  4. Step 4: Simplify right side
    321,908.61x = 82,608,472,655.97
  5. Step 5: Solve for x
    x = 82,608,472,655.97/321,908.61
  6. Step 6: Final answer
    x = 256,620.89

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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.