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Finding the Fourth Proportional to 80,410.60, 120,615.90 and 59,674.60

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Solution

The fourth proportional to 80,410.60, 120,615.90 and 59,674.60 is: 89,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,410.60 : 120,615.90 = 59,674.60 : x
  2. Step 2: Convert to fraction form
    80,410.60/120,615.90 = 59,674.60/x
  3. Step 3: Cross multiply
    80,410.60x = 120,615.90 × 59,674.60
  4. Step 4: Simplify right side
    80,410.60x = 7,197,705,586.14
  5. Step 5: Solve for x
    x = 7,197,705,586.14/80,410.60
  6. Step 6: Final answer
    x = 89,511.90

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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.