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Finding the Fourth Proportional to 111,811.84, 167,728.62 and 41,674.72

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Solution

The fourth proportional to 111,811.84, 167,728.62 and 41,674.72 is: 62,516.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,811.84 : 167,728.62 = 41,674.72 : x
  2. Step 2: Convert to fraction form
    111,811.84/167,728.62 = 41,674.72/x
  3. Step 3: Cross multiply
    111,811.84x = 167,728.62 × 41,674.72
  4. Step 4: Simplify right side
    111,811.84x = 6,990,043,274.49
  5. Step 5: Solve for x
    x = 6,990,043,274.49/111,811.84
  6. Step 6: Final answer
    x = 62,516.13

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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.