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Finding the Fourth Proportional to 235,628.28, 325,043.04 and 140,067

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Solution

The fourth proportional to 235,628.28, 325,043.04 and 140,067 is: 193,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,628.28 : 325,043.04 = 140,067 : x
  2. Step 2: Convert to fraction form
    235,628.28/325,043.04 = 140,067/x
  3. Step 3: Cross multiply
    235,628.28x = 325,043.04 × 140,067
  4. Step 4: Simplify right side
    235,628.28x = 45,527,803,483.68
  5. Step 5: Solve for x
    x = 45,527,803,483.68/235,628.28
  6. Step 6: Final answer
    x = 193,218.76

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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.