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Finding the Fourth Proportional to 174,785.40, 262,375.20 and 115,736.40

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Solution

The fourth proportional to 174,785.40, 262,375.20 and 115,736.40 is: 173,735.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,785.40 : 262,375.20 = 115,736.40 : x
  2. Step 2: Convert to fraction form
    174,785.40/262,375.20 = 115,736.40/x
  3. Step 3: Cross multiply
    174,785.40x = 262,375.20 × 115,736.40
  4. Step 4: Simplify right side
    174,785.40x = 30,366,361,097.28
  5. Step 5: Solve for x
    x = 30,366,361,097.28/174,785.40
  6. Step 6: Final answer
    x = 173,735.11

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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.