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Finding the Fourth Proportional to 321,151.23, 443,171.25 and 177,902.73

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Solution

The fourth proportional to 321,151.23, 443,171.25 and 177,902.73 is: 245,496.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,151.23 : 443,171.25 = 177,902.73 : x
  2. Step 2: Convert to fraction form
    321,151.23/443,171.25 = 177,902.73/x
  3. Step 3: Cross multiply
    321,151.23x = 443,171.25 × 177,902.73
  4. Step 4: Simplify right side
    321,151.23x = 78,841,375,232.51
  5. Step 5: Solve for x
    x = 78,841,375,232.51/321,151.23
  6. Step 6: Final answer
    x = 245,496.10

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1.5x scale

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.