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Finding the Fourth Proportional to 111,459.94, 167,247.24 and 74,045.86

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Solution

The fourth proportional to 111,459.94, 167,247.24 and 74,045.86 is: 111,106.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,459.94 : 167,247.24 = 74,045.86 : x
  2. Step 2: Convert to fraction form
    111,459.94/167,247.24 = 74,045.86/x
  3. Step 3: Cross multiply
    111,459.94x = 167,247.24 × 74,045.86
  4. Step 4: Simplify right side
    111,459.94x = 12,383,965,718.43
  5. Step 5: Solve for x
    x = 12,383,965,718.43/111,459.94
  6. Step 6: Final answer
    x = 111,106.88

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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.