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Finding the Fourth Proportional to 188,247.42, 259,785.63 and 103,364.82

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Solution

The fourth proportional to 188,247.42, 259,785.63 and 103,364.82 is: 142,645.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,247.42 : 259,785.63 = 103,364.82 : x
  2. Step 2: Convert to fraction form
    188,247.42/259,785.63 = 103,364.82/x
  3. Step 3: Cross multiply
    188,247.42x = 259,785.63 × 103,364.82
  4. Step 4: Simplify right side
    188,247.42x = 26,852,694,883.54
  5. Step 5: Solve for x
    x = 26,852,694,883.54/188,247.42
  6. Step 6: Final answer
    x = 142,645.75

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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.