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Finding the Fourth Proportional to 203,484.99, 305,271.23 and 68,562.47

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Solution

The fourth proportional to 203,484.99, 305,271.23 and 68,562.47 is: 102,858.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,484.99 : 305,271.23 = 68,562.47 : x
  2. Step 2: Convert to fraction form
    203,484.99/305,271.23 = 68,562.47/x
  3. Step 3: Cross multiply
    203,484.99x = 305,271.23 × 68,562.47
  4. Step 4: Simplify right side
    203,484.99x = 20,930,149,548.74
  5. Step 5: Solve for x
    x = 20,930,149,548.74/203,484.99
  6. Step 6: Final answer
    x = 102,858.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.