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Finding the Fourth Proportional to 188,235.92, 259,769.76 and 103,353.32

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Solution

The fourth proportional to 188,235.92, 259,769.76 and 103,353.32 is: 142,629.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,235.92 : 259,769.76 = 103,353.32 : x
  2. Step 2: Convert to fraction form
    188,235.92/259,769.76 = 103,353.32/x
  3. Step 3: Cross multiply
    188,235.92x = 259,769.76 × 103,353.32
  4. Step 4: Simplify right side
    188,235.92x = 26,848,067,131.60
  5. Step 5: Solve for x
    x = 26,848,067,131.60/188,235.92
  6. Step 6: Final answer
    x = 142,629.88

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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.