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Finding the Fourth Proportional to 159,211.98, 238,834.68 and 79,269.77

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Solution

The fourth proportional to 159,211.98, 238,834.68 and 79,269.77 is: 118,912.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,211.98 : 238,834.68 = 79,269.77 : x
  2. Step 2: Convert to fraction form
    159,211.98/238,834.68 = 79,269.77/x
  3. Step 3: Cross multiply
    159,211.98x = 238,834.68 × 79,269.77
  4. Step 4: Simplify right side
    159,211.98x = 18,932,370,451.45
  5. Step 5: Solve for x
    x = 18,932,370,451.45/159,211.98
  6. Step 6: Final answer
    x = 118,912.98

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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.