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Finding the Fourth Proportional to 132,573.72, 198,891.69 and 43,827.21

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Solution

The fourth proportional to 132,573.72, 198,891.69 and 43,827.21 is: 65,751.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,573.72 : 198,891.69 = 43,827.21 : x
  2. Step 2: Convert to fraction form
    132,573.72/198,891.69 = 43,827.21/x
  3. Step 3: Cross multiply
    132,573.72x = 198,891.69 × 43,827.21
  4. Step 4: Simplify right side
    132,573.72x = 8,716,867,864.88
  5. Step 5: Solve for x
    x = 8,716,867,864.88/132,573.72
  6. Step 6: Final answer
    x = 65,751.10

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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.