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Finding the Fourth Proportional to 170,231.88, 255,015.64 and 132,615.83

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Solution

The fourth proportional to 170,231.88, 255,015.64 and 132,615.83 is: 198,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,231.88 : 255,015.64 = 132,615.83 : x
  2. Step 2: Convert to fraction form
    170,231.88/255,015.64 = 132,615.83/x
  3. Step 3: Cross multiply
    170,231.88x = 255,015.64 × 132,615.83
  4. Step 4: Simplify right side
    170,231.88x = 33,819,111,564.89
  5. Step 5: Solve for x
    x = 33,819,111,564.89/170,231.88
  6. Step 6: Final answer
    x = 198,664.97

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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.