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Finding the Fourth Proportional to 71,849.10, 107,707.23 and 36,711.30

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Solution

The fourth proportional to 71,849.10, 107,707.23 and 36,711.30 is: 55,033.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,849.10 : 107,707.23 = 36,711.30 : x
  2. Step 2: Convert to fraction form
    71,849.10/107,707.23 = 36,711.30/x
  3. Step 3: Cross multiply
    71,849.10x = 107,707.23 × 36,711.30
  4. Step 4: Simplify right side
    71,849.10x = 3,954,072,432.70
  5. Step 5: Solve for x
    x = 3,954,072,432.70/71,849.10
  6. Step 6: Final answer
    x = 55,033.01

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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.