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Finding the Fourth Proportional to 68,017.91, 102,026.72 and 18,098.00

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Solution

The fourth proportional to 68,017.91, 102,026.72 and 18,098.00 is: 27,146.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,017.91 : 102,026.72 = 18,098.00 : x
  2. Step 2: Convert to fraction form
    68,017.91/102,026.72 = 18,098.00/x
  3. Step 3: Cross multiply
    68,017.91x = 102,026.72 × 18,098.00
  4. Step 4: Simplify right side
    68,017.91x = 1,846,479,496.27
  5. Step 5: Solve for x
    x = 1,846,479,496.27/68,017.91
  6. Step 6: Final answer
    x = 27,146.96

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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.