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Finding the Fourth Proportional to 111,609.60, 167,414.40 and 76,180.20

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Solution

The fourth proportional to 111,609.60, 167,414.40 and 76,180.20 is: 114,270.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,609.60 : 167,414.40 = 76,180.20 : x
  2. Step 2: Convert to fraction form
    111,609.60/167,414.40 = 76,180.20/x
  3. Step 3: Cross multiply
    111,609.60x = 167,414.40 × 76,180.20
  4. Step 4: Simplify right side
    111,609.60x = 12,753,662,474.88
  5. Step 5: Solve for x
    x = 12,753,662,474.88/111,609.60
  6. Step 6: Final answer
    x = 114,270.30

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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.