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Finding the Fourth Proportional to 79,603.39, 119,379.66 and 26,285.44

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Solution

The fourth proportional to 79,603.39, 119,379.66 and 26,285.44 is: 39,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,603.39 : 119,379.66 = 26,285.44 : x
  2. Step 2: Convert to fraction form
    79,603.39/119,379.66 = 26,285.44/x
  3. Step 3: Cross multiply
    79,603.39x = 119,379.66 × 26,285.44
  4. Step 4: Simplify right side
    79,603.39x = 3,137,946,890.15
  5. Step 5: Solve for x
    x = 3,137,946,890.15/79,603.39
  6. Step 6: Final answer
    x = 39,419.76

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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.