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Finding the Fourth Proportional to 201,211.21, 301,629.21 and 67,998.31

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Solution

The fourth proportional to 201,211.21, 301,629.21 and 67,998.31 is: 101,934.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,211.21 : 301,629.21 = 67,998.31 : x
  2. Step 2: Convert to fraction form
    201,211.21/301,629.21 = 67,998.31/x
  3. Step 3: Cross multiply
    201,211.21x = 301,629.21 × 67,998.31
  4. Step 4: Simplify right side
    201,211.21x = 20,510,276,526.64
  5. Step 5: Solve for x
    x = 20,510,276,526.64/201,211.21
  6. Step 6: Final answer
    x = 101,934.06

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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.