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Finding the Fourth Proportional to 201,620.89, 302,409.73 and 61,380.73

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Solution

The fourth proportional to 201,620.89, 302,409.73 and 61,380.73 is: 92,064.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,620.89 : 302,409.73 = 61,380.73 : x
  2. Step 2: Convert to fraction form
    201,620.89/302,409.73 = 61,380.73/x
  3. Step 3: Cross multiply
    201,620.89x = 302,409.73 × 61,380.73
  4. Step 4: Simplify right side
    201,620.89x = 18,562,129,986.50
  5. Step 5: Solve for x
    x = 18,562,129,986.50/201,620.89
  6. Step 6: Final answer
    x = 92,064.52

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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.