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Finding the Fourth Proportional to 101,165.61, 151,764.90 and 37,990.65

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Solution

The fourth proportional to 101,165.61, 151,764.90 and 37,990.65 is: 56,992.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,165.61 : 151,764.90 = 37,990.65 : x
  2. Step 2: Convert to fraction form
    101,165.61/151,764.90 = 37,990.65/x
  3. Step 3: Cross multiply
    101,165.61x = 151,764.90 × 37,990.65
  4. Step 4: Simplify right side
    101,165.61x = 5,765,647,198.19
  5. Step 5: Solve for x
    x = 5,765,647,198.19/101,165.61
  6. Step 6: Final answer
    x = 56,992.17

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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.