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Finding the Fourth Proportional to 111,487.72, 167,257.12 and 48,318.46

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Solution

The fourth proportional to 111,487.72, 167,257.12 and 48,318.46 is: 72,488.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,487.72 : 167,257.12 = 48,318.46 : x
  2. Step 2: Convert to fraction form
    111,487.72/167,257.12 = 48,318.46/x
  3. Step 3: Cross multiply
    111,487.72x = 167,257.12 × 48,318.46
  4. Step 4: Simplify right side
    111,487.72x = 8,081,606,462.44
  5. Step 5: Solve for x
    x = 8,081,606,462.44/111,487.72
  6. Step 6: Final answer
    x = 72,488.76

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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.