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Finding the Fourth Proportional to 132,762.72, 199,067.40 and 43,992.30

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Solution

The fourth proportional to 132,762.72, 199,067.40 and 43,992.30 is: 65,963.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,762.72 : 199,067.40 = 43,992.30 : x
  2. Step 2: Convert to fraction form
    132,762.72/199,067.40 = 43,992.30/x
  3. Step 3: Cross multiply
    132,762.72x = 199,067.40 × 43,992.30
  4. Step 4: Simplify right side
    132,762.72x = 8,757,432,781.02
  5. Step 5: Solve for x
    x = 8,757,432,781.02/132,762.72
  6. Step 6: Final answer
    x = 65,963.04

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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.