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Finding the Fourth Proportional to 71,754.12, 107,532.36 and 36,620.37

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Solution

The fourth proportional to 71,754.12, 107,532.36 and 36,620.37 is: 54,880.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,754.12 : 107,532.36 = 36,620.37 : x
  2. Step 2: Convert to fraction form
    71,754.12/107,532.36 = 36,620.37/x
  3. Step 3: Cross multiply
    71,754.12x = 107,532.36 × 36,620.37
  4. Step 4: Simplify right side
    71,754.12x = 3,937,874,810.17
  5. Step 5: Solve for x
    x = 3,937,874,810.17/71,754.12
  6. Step 6: Final answer
    x = 54,880.12

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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.