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Finding the Fourth Proportional to 132,294.81, 198,469.55 and 43,553.64

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Solution

The fourth proportional to 132,294.81, 198,469.55 and 43,553.64 is: 65,339.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,294.81 : 198,469.55 = 43,553.64 : x
  2. Step 2: Convert to fraction form
    132,294.81/198,469.55 = 43,553.64/x
  3. Step 3: Cross multiply
    132,294.81x = 198,469.55 × 43,553.64
  4. Step 4: Simplify right side
    132,294.81x = 8,644,071,331.66
  5. Step 5: Solve for x
    x = 8,644,071,331.66/132,294.81
  6. Step 6: Final answer
    x = 65,339.46

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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.