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Finding the Fourth Proportional to 101,245.05, 151,790.49 and 61,255.62

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Solution

The fourth proportional to 101,245.05, 151,790.49 and 61,255.62 is: 91,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,245.05 : 151,790.49 = 61,255.62 : x
  2. Step 2: Convert to fraction form
    101,245.05/151,790.49 = 61,255.62/x
  3. Step 3: Cross multiply
    101,245.05x = 151,790.49 × 61,255.62
  4. Step 4: Simplify right side
    101,245.05x = 9,298,020,575.05
  5. Step 5: Solve for x
    x = 9,298,020,575.05/101,245.05
  6. Step 6: Final answer
    x = 91,836.79

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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.