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Finding the Fourth Proportional to 156,680.40, 235,020.60 and 150,556.80

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Solution

The fourth proportional to 156,680.40, 235,020.60 and 150,556.80 is: 225,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,680.40 : 235,020.60 = 150,556.80 : x
  2. Step 2: Convert to fraction form
    156,680.40/235,020.60 = 150,556.80/x
  3. Step 3: Cross multiply
    156,680.40x = 235,020.60 × 150,556.80
  4. Step 4: Simplify right side
    156,680.40x = 35,383,949,470.08
  5. Step 5: Solve for x
    x = 35,383,949,470.08/156,680.40
  6. Step 6: Final answer
    x = 225,835.20

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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.