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Finding the Fourth Proportional to 79,792.80, 119,706.93 and 34,821.39

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Solution

The fourth proportional to 79,792.80, 119,706.93 and 34,821.39 is: 52,239.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,792.80 : 119,706.93 = 34,821.39 : x
  2. Step 2: Convert to fraction form
    79,792.80/119,706.93 = 34,821.39/x
  3. Step 3: Cross multiply
    79,792.80x = 119,706.93 × 34,821.39
  4. Step 4: Simplify right side
    79,792.80x = 4,168,362,144.13
  5. Step 5: Solve for x
    x = 4,168,362,144.13/79,792.80
  6. Step 6: Final answer
    x = 52,239.83

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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.