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Finding the Fourth Proportional to 68,868.63, 103,299.30 and 22,117.86

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Solution

The fourth proportional to 68,868.63, 103,299.30 and 22,117.86 is: 33,175.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,868.63 : 103,299.30 = 22,117.86 : x
  2. Step 2: Convert to fraction form
    68,868.63/103,299.30 = 22,117.86/x
  3. Step 3: Cross multiply
    68,868.63x = 103,299.30 × 22,117.86
  4. Step 4: Simplify right side
    68,868.63x = 2,284,759,455.50
  5. Step 5: Solve for x
    x = 2,284,759,455.50/68,868.63
  6. Step 6: Final answer
    x = 33,175.62

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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.