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Finding the Fourth Proportional to 68,702.56, 102,884.88 and 33,528.80

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Solution

The fourth proportional to 68,702.56, 102,884.88 and 33,528.80 is: 50,210.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,702.56 : 102,884.88 = 33,528.80 : x
  2. Step 2: Convert to fraction form
    68,702.56/102,884.88 = 33,528.80/x
  3. Step 3: Cross multiply
    68,702.56x = 102,884.88 × 33,528.80
  4. Step 4: Simplify right side
    68,702.56x = 3,449,606,564.54
  5. Step 5: Solve for x
    x = 3,449,606,564.54/68,702.56
  6. Step 6: Final answer
    x = 50,210.74

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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.