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Finding the Fourth Proportional to 167,989.85, 252,021.21 and 49,670.72

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Solution

The fourth proportional to 167,989.85, 252,021.21 and 49,670.72 is: 74,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,989.85 : 252,021.21 = 49,670.72 : x
  2. Step 2: Convert to fraction form
    167,989.85/252,021.21 = 49,670.72/x
  3. Step 3: Cross multiply
    167,989.85x = 252,021.21 × 49,670.72
  4. Step 4: Simplify right side
    167,989.85x = 12,518,074,454.68
  5. Step 5: Solve for x
    x = 12,518,074,454.68/167,989.85
  6. Step 6: Final answer
    x = 74,516.85

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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.