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Finding the Fourth Proportional to 321,070.54, 443,057.88 and 177,822.04

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Solution

The fourth proportional to 321,070.54, 443,057.88 and 177,822.04 is: 245,383.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,070.54 : 443,057.88 = 177,822.04 : x
  2. Step 2: Convert to fraction form
    321,070.54/443,057.88 = 177,822.04/x
  3. Step 3: Cross multiply
    321,070.54x = 443,057.88 × 177,822.04
  4. Step 4: Simplify right side
    321,070.54x = 78,785,456,059.68
  5. Step 5: Solve for x
    x = 78,785,456,059.68/321,070.54
  6. Step 6: Final answer
    x = 245,383.63

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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.