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Finding the Fourth Proportional to 146,052.80, 218,917.20 and 57,276.80

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Solution

The fourth proportional to 146,052.80, 218,917.20 and 57,276.80 is: 85,851.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,052.80 : 218,917.20 = 57,276.80 : x
  2. Step 2: Convert to fraction form
    146,052.80/218,917.20 = 57,276.80/x
  3. Step 3: Cross multiply
    146,052.80x = 218,917.20 × 57,276.80
  4. Step 4: Simplify right side
    146,052.80x = 12,538,876,680.96
  5. Step 5: Solve for x
    x = 12,538,876,680.96/146,052.80
  6. Step 6: Final answer
    x = 85,851.67

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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.