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Finding the Fourth Proportional to 80,353.94, 120,553.48 and 29,752.21

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Solution

The fourth proportional to 80,353.94, 120,553.48 and 29,752.21 is: 44,636.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,353.94 : 120,553.48 = 29,752.21 : x
  2. Step 2: Convert to fraction form
    80,353.94/120,553.48 = 29,752.21/x
  3. Step 3: Cross multiply
    80,353.94x = 120,553.48 × 29,752.21
  4. Step 4: Simplify right side
    80,353.94x = 3,586,732,189.00
  5. Step 5: Solve for x
    x = 3,586,732,189.00/80,353.94
  6. Step 6: Final answer
    x = 44,636.67

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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.