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Finding the Fourth Proportional to 68,798.12, 103,201.98 and 27,245

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Solution

The fourth proportional to 68,798.12, 103,201.98 and 27,245 is: 40,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,798.12 : 103,201.98 = 27,245 : x
  2. Step 2: Convert to fraction form
    68,798.12/103,201.98 = 27,245/x
  3. Step 3: Cross multiply
    68,798.12x = 103,201.98 × 27,245
  4. Step 4: Simplify right side
    68,798.12x = 2,811,737,945.10
  5. Step 5: Solve for x
    x = 2,811,737,945.10/68,798.12
  6. Step 6: Final answer
    x = 40,869.40

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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.