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Finding the Fourth Proportional to 254,362.73, 350,139.65 and 219,891.56

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Solution

The fourth proportional to 254,362.73, 350,139.65 and 219,891.56 is: 302,688.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,362.73 : 350,139.65 = 219,891.56 : x
  2. Step 2: Convert to fraction form
    254,362.73/350,139.65 = 219,891.56/x
  3. Step 3: Cross multiply
    254,362.73x = 350,139.65 × 219,891.56
  4. Step 4: Simplify right side
    254,362.73x = 76,992,751,006.20
  5. Step 5: Solve for x
    x = 76,992,751,006.20/254,362.73
  6. Step 6: Final answer
    x = 302,688.81

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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.