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Finding the Fourth Proportional to 68,014.02, 102,020.88 and 18,094.15

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Solution

The fourth proportional to 68,014.02, 102,020.88 and 18,094.15 is: 27,141.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,014.02 : 102,020.88 = 18,094.15 : x
  2. Step 2: Convert to fraction form
    68,014.02/102,020.88 = 18,094.15/x
  3. Step 3: Cross multiply
    68,014.02x = 102,020.88 × 18,094.15
  4. Step 4: Simplify right side
    68,014.02x = 1,845,981,105.85
  5. Step 5: Solve for x
    x = 1,845,981,105.85/68,014.02
  6. Step 6: Final answer
    x = 27,141.19

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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.