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Finding the Fourth Proportional to 170,481.94, 255,796.77 and 91,503.88

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Solution

The fourth proportional to 170,481.94, 255,796.77 and 91,503.88 is: 137,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,481.94 : 255,796.77 = 91,503.88 : x
  2. Step 2: Convert to fraction form
    170,481.94/255,796.77 = 91,503.88/x
  3. Step 3: Cross multiply
    170,481.94x = 255,796.77 × 91,503.88
  4. Step 4: Simplify right side
    170,481.94x = 23,406,396,946.47
  5. Step 5: Solve for x
    x = 23,406,396,946.47/170,481.94
  6. Step 6: Final answer
    x = 137,295.46

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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.