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Finding the Fourth Proportional to 111,315.48, 166,895.46 and 41,185.68

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Solution

The fourth proportional to 111,315.48, 166,895.46 and 41,185.68 is: 61,749.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,315.48 : 166,895.46 = 41,185.68 : x
  2. Step 2: Convert to fraction form
    111,315.48/166,895.46 = 41,185.68/x
  3. Step 3: Cross multiply
    111,315.48x = 166,895.46 × 41,185.68
  4. Step 4: Simplify right side
    111,315.48x = 6,873,703,009.01
  5. Step 5: Solve for x
    x = 6,873,703,009.01/111,315.48
  6. Step 6: Final answer
    x = 61,749.75

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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.