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Finding the Fourth Proportional to 133,679.21, 200,544.11 and 53,723.40

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Solution

The fourth proportional to 133,679.21, 200,544.11 and 53,723.40 is: 80,595.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,679.21 : 200,544.11 = 53,723.40 : x
  2. Step 2: Convert to fraction form
    133,679.21/200,544.11 = 53,723.40/x
  3. Step 3: Cross multiply
    133,679.21x = 200,544.11 × 53,723.40
  4. Step 4: Simplify right side
    133,679.21x = 10,773,911,170.56
  5. Step 5: Solve for x
    x = 10,773,911,170.56/133,679.21
  6. Step 6: Final answer
    x = 80,595.27

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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.