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Finding the Fourth Proportional to 225,934.99, 311,793.44 and 123,958.55

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Solution

The fourth proportional to 225,934.99, 311,793.44 and 123,958.55 is: 171,064.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,934.99 : 311,793.44 = 123,958.55 : x
  2. Step 2: Convert to fraction form
    225,934.99/311,793.44 = 123,958.55/x
  3. Step 3: Cross multiply
    225,934.99x = 311,793.44 × 123,958.55
  4. Step 4: Simplify right side
    225,934.99x = 38,649,462,881.60
  5. Step 5: Solve for x
    x = 38,649,462,881.60/225,934.99
  6. Step 6: Final answer
    x = 171,064.53

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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.