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Finding the Fourth Proportional to 140,433.30, 210,212.55 and 101,067.30

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Solution

The fourth proportional to 140,433.30, 210,212.55 and 101,067.30 is: 151,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,433.30 : 210,212.55 = 101,067.30 : x
  2. Step 2: Convert to fraction form
    140,433.30/210,212.55 = 101,067.30/x
  3. Step 3: Cross multiply
    140,433.30x = 210,212.55 × 101,067.30
  4. Step 4: Simplify right side
    140,433.30x = 21,245,614,854.62
  5. Step 5: Solve for x
    x = 21,245,614,854.62/140,433.30
  6. Step 6: Final answer
    x = 151,286.16

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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.