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Finding the Fourth Proportional to 201,074.64, 301,626.60 and 67,910.64

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Solution

The fourth proportional to 201,074.64, 301,626.60 and 67,910.64 is: 101,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,074.64 : 301,626.60 = 67,910.64 : x
  2. Step 2: Convert to fraction form
    201,074.64/301,626.60 = 67,910.64/x
  3. Step 3: Cross multiply
    201,074.64x = 301,626.60 × 67,910.64
  4. Step 4: Simplify right side
    201,074.64x = 20,483,655,447.02
  5. Step 5: Solve for x
    x = 20,483,655,447.02/201,074.64
  6. Step 6: Final answer
    x = 101,870.90

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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.