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Finding the Fourth Proportional to 68,672.10, 102,823.59 and 43,576.28

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Solution

The fourth proportional to 68,672.10, 102,823.59 and 43,576.28 is: 65,247.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,672.10 : 102,823.59 = 43,576.28 : x
  2. Step 2: Convert to fraction form
    68,672.10/102,823.59 = 43,576.28/x
  3. Step 3: Cross multiply
    68,672.10x = 102,823.59 × 43,576.28
  4. Step 4: Simplify right side
    68,672.10x = 4,480,669,583.33
  5. Step 5: Solve for x
    x = 4,480,669,583.33/68,672.10
  6. Step 6: Final answer
    x = 65,247.30

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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.