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Finding the Fourth Proportional to 321,777.80, 444,073.55 and 185,836.58

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Solution

The fourth proportional to 321,777.80, 444,073.55 and 185,836.58 is: 256,466.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,777.80 : 444,073.55 = 185,836.58 : x
  2. Step 2: Convert to fraction form
    321,777.80/444,073.55 = 185,836.58/x
  3. Step 3: Cross multiply
    321,777.80x = 444,073.55 × 185,836.58
  4. Step 4: Simplify right side
    321,777.80x = 82,525,106,650.91
  5. Step 5: Solve for x
    x = 82,525,106,650.91/321,777.80
  6. Step 6: Final answer
    x = 256,466.13

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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.