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Finding the Fourth Proportional to 52,942.80, 79,414.20 and 44,389.20

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Solution

The fourth proportional to 52,942.80, 79,414.20 and 44,389.20 is: 66,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,942.80 : 79,414.20 = 44,389.20 : x
  2. Step 2: Convert to fraction form
    52,942.80/79,414.20 = 44,389.20/x
  3. Step 3: Cross multiply
    52,942.80x = 79,414.20 × 44,389.20
  4. Step 4: Simplify right side
    52,942.80x = 3,525,132,806.64
  5. Step 5: Solve for x
    x = 3,525,132,806.64/52,942.80
  6. Step 6: Final answer
    x = 66,583.80

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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.