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Finding the Fourth Proportional to 168,212.67, 252,367.70 and 49,886.85

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Solution

The fourth proportional to 168,212.67, 252,367.70 and 49,886.85 is: 74,844.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,212.67 : 252,367.70 = 49,886.85 : x
  2. Step 2: Convert to fraction form
    168,212.67/252,367.70 = 49,886.85/x
  3. Step 3: Cross multiply
    168,212.67x = 252,367.70 × 49,886.85
  4. Step 4: Simplify right side
    168,212.67x = 12,589,830,478.77
  5. Step 5: Solve for x
    x = 12,589,830,478.77/168,212.67
  6. Step 6: Final answer
    x = 74,844.72

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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.