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Finding the Fourth Proportional to 170,469.60, 255,934.80 and 108,261.60

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Solution

The fourth proportional to 170,469.60, 255,934.80 and 108,261.60 is: 162,538.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,469.60 : 255,934.80 = 108,261.60 : x
  2. Step 2: Convert to fraction form
    170,469.60/255,934.80 = 108,261.60/x
  3. Step 3: Cross multiply
    170,469.60x = 255,934.80 × 108,261.60
  4. Step 4: Simplify right side
    170,469.60x = 27,707,910,943.68
  5. Step 5: Solve for x
    x = 27,707,910,943.68/170,469.60
  6. Step 6: Final answer
    x = 162,538.72

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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.