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Finding the Fourth Proportional to 170,231.70, 255,015.36 and 132,615.64

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Solution

The fourth proportional to 170,231.70, 255,015.36 and 132,615.64 is: 198,664.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,231.70 : 255,015.36 = 132,615.64 : x
  2. Step 2: Convert to fraction form
    170,231.70/255,015.36 = 132,615.64/x
  3. Step 3: Cross multiply
    170,231.70x = 255,015.36 × 132,615.64
  4. Step 4: Simplify right side
    170,231.70x = 33,819,025,495.00
  5. Step 5: Solve for x
    x = 33,819,025,495.00/170,231.70
  6. Step 6: Final answer
    x = 198,664.68

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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.