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Finding the Fourth Proportional to 71,694.80, 107,527.80 and 34,254.80

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Solution

The fourth proportional to 71,694.80, 107,527.80 and 34,254.80 is: 51,375.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,694.80 : 107,527.80 = 34,254.80 : x
  2. Step 2: Convert to fraction form
    71,694.80/107,527.80 = 34,254.80/x
  3. Step 3: Cross multiply
    71,694.80x = 107,527.80 × 34,254.80
  4. Step 4: Simplify right side
    71,694.80x = 3,683,343,283.44
  5. Step 5: Solve for x
    x = 3,683,343,283.44/71,694.80
  6. Step 6: Final answer
    x = 51,375.32

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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.