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Finding the Fourth Proportional to 227,187.67, 313,518.99 and 131,749.69

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Solution

The fourth proportional to 227,187.67, 313,518.99 and 131,749.69 is: 181,814.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,187.67 : 313,518.99 = 131,749.69 : x
  2. Step 2: Convert to fraction form
    227,187.67/313,518.99 = 131,749.69/x
  3. Step 3: Cross multiply
    227,187.67x = 313,518.99 × 131,749.69
  4. Step 4: Simplify right side
    227,187.67x = 41,306,029,741.61
  5. Step 5: Solve for x
    x = 41,306,029,741.61/227,187.67
  6. Step 6: Final answer
    x = 181,814.58

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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.