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Finding the Fourth Proportional to 68,899.61, 103,302.95 and 23,909.38

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Solution

The fourth proportional to 68,899.61, 103,302.95 and 23,909.38 is: 35,847.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,899.61 : 103,302.95 = 23,909.38 : x
  2. Step 2: Convert to fraction form
    68,899.61/103,302.95 = 23,909.38/x
  3. Step 3: Cross multiply
    68,899.61x = 103,302.95 × 23,909.38
  4. Step 4: Simplify right side
    68,899.61x = 2,469,909,108.87
  5. Step 5: Solve for x
    x = 2,469,909,108.87/68,899.61
  6. Step 6: Final answer
    x = 35,847.94

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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.