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Finding the Fourth Proportional to 201,767.10, 302,563.09 and 68,611.60

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Solution

The fourth proportional to 201,767.10, 302,563.09 and 68,611.60 is: 102,887.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,767.10 : 302,563.09 = 68,611.60 : x
  2. Step 2: Convert to fraction form
    201,767.10/302,563.09 = 68,611.60/x
  3. Step 3: Cross multiply
    201,767.10x = 302,563.09 × 68,611.60
  4. Step 4: Simplify right side
    201,767.10x = 20,759,337,705.84
  5. Step 5: Solve for x
    x = 20,759,337,705.84/201,767.10
  6. Step 6: Final answer
    x = 102,887.62

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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.