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Finding the Fourth Proportional to 80,771.58, 121,176.90 and 25,367.58

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Solution

The fourth proportional to 80,771.58, 121,176.90 and 25,367.58 is: 38,057.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,771.58 : 121,176.90 = 25,367.58 : x
  2. Step 2: Convert to fraction form
    80,771.58/121,176.90 = 25,367.58/x
  3. Step 3: Cross multiply
    80,771.58x = 121,176.90 × 25,367.58
  4. Step 4: Simplify right side
    80,771.58x = 3,073,964,704.90
  5. Step 5: Solve for x
    x = 3,073,964,704.90/80,771.58
  6. Step 6: Final answer
    x = 38,057.50

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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.