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Finding the Fourth Proportional to 68,271.66, 102,407.49 and 26,689.50

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Solution

The fourth proportional to 68,271.66, 102,407.49 and 26,689.50 is: 40,034.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,271.66 : 102,407.49 = 26,689.50 : x
  2. Step 2: Convert to fraction form
    68,271.66/102,407.49 = 26,689.50/x
  3. Step 3: Cross multiply
    68,271.66x = 102,407.49 × 26,689.50
  4. Step 4: Simplify right side
    68,271.66x = 2,733,204,704.36
  5. Step 5: Solve for x
    x = 2,733,204,704.36/68,271.66
  6. Step 6: Final answer
    x = 40,034.25

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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.