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Finding the Fourth Proportional to 201,078.18, 301,617.81 and 67,922.82

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Solution

The fourth proportional to 201,078.18, 301,617.81 and 67,922.82 is: 101,884.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,078.18 : 301,617.81 = 67,922.82 : x
  2. Step 2: Convert to fraction form
    201,078.18/301,617.81 = 67,922.82/x
  3. Step 3: Cross multiply
    201,078.18x = 301,617.81 × 67,922.82
  4. Step 4: Simplify right side
    201,078.18x = 20,486,732,217.42
  5. Step 5: Solve for x
    x = 20,486,732,217.42/201,078.18
  6. Step 6: Final answer
    x = 101,884.41

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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.