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Finding the Fourth Proportional to 321,165.22, 443,195.40 and 177,927.52

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Solution

The fourth proportional to 321,165.22, 443,195.40 and 177,927.52 is: 245,533.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,165.22 : 443,195.40 = 177,927.52 : x
  2. Step 2: Convert to fraction form
    321,165.22/443,195.40 = 177,927.52/x
  3. Step 3: Cross multiply
    321,165.22x = 443,195.40 × 177,927.52
  4. Step 4: Simplify right side
    321,165.22x = 78,856,658,397.41
  5. Step 5: Solve for x
    x = 78,856,658,397.41/321,165.22
  6. Step 6: Final answer
    x = 245,533.00

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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.