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Finding the Fourth Proportional to 168,087.76, 231,960.64 and 92,636.24

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Solution

The fourth proportional to 168,087.76, 231,960.64 and 92,636.24 is: 127,837.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,087.76 : 231,960.64 = 92,636.24 : x
  2. Step 2: Convert to fraction form
    168,087.76/231,960.64 = 92,636.24/x
  3. Step 3: Cross multiply
    168,087.76x = 231,960.64 × 92,636.24
  4. Step 4: Simplify right side
    168,087.76x = 21,487,961,517.59
  5. Step 5: Solve for x
    x = 21,487,961,517.59/168,087.76
  6. Step 6: Final answer
    x = 127,837.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.