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Finding the Fourth Proportional to 68,759.15, 103,173.75 and 33,250.77

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Solution

The fourth proportional to 68,759.15, 103,173.75 and 33,250.77 is: 49,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,759.15 : 103,173.75 = 33,250.77 : x
  2. Step 2: Convert to fraction form
    68,759.15/103,173.75 = 33,250.77/x
  3. Step 3: Cross multiply
    68,759.15x = 103,173.75 × 33,250.77
  4. Step 4: Simplify right side
    68,759.15x = 3,430,606,631.29
  5. Step 5: Solve for x
    x = 3,430,606,631.29/68,759.15
  6. Step 6: Final answer
    x = 49,893.10

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1.5x scale

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.