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Finding the Fourth Proportional to 111,982.32, 167,915.16 and 41,803.92

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Solution

The fourth proportional to 111,982.32, 167,915.16 and 41,803.92 is: 62,684.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,982.32 : 167,915.16 = 41,803.92 : x
  2. Step 2: Convert to fraction form
    111,982.32/167,915.16 = 41,803.92/x
  3. Step 3: Cross multiply
    111,982.32x = 167,915.16 × 41,803.92
  4. Step 4: Simplify right side
    111,982.32x = 7,019,511,915.43
  5. Step 5: Solve for x
    x = 7,019,511,915.43/111,982.32
  6. Step 6: Final answer
    x = 62,684.11

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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.