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Finding the Fourth Proportional to 79,640.94, 119,478.70 and 24,235.50

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Solution

The fourth proportional to 79,640.94, 119,478.70 and 24,235.50 is: 36,358.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,640.94 : 119,478.70 = 24,235.50 : x
  2. Step 2: Convert to fraction form
    79,640.94/119,478.70 = 24,235.50/x
  3. Step 3: Cross multiply
    79,640.94x = 119,478.70 × 24,235.50
  4. Step 4: Simplify right side
    79,640.94x = 2,895,626,033.85
  5. Step 5: Solve for x
    x = 2,895,626,033.85/79,640.94
  6. Step 6: Final answer
    x = 36,358.51

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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.