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Finding the Fourth Proportional to 132,369.39, 198,583.25 and 43,619.11

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Solution

The fourth proportional to 132,369.39, 198,583.25 and 43,619.11 is: 65,438.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,369.39 : 198,583.25 = 43,619.11 : x
  2. Step 2: Convert to fraction form
    132,369.39/198,583.25 = 43,619.11/x
  3. Step 3: Cross multiply
    132,369.39x = 198,583.25 × 43,619.11
  4. Step 4: Simplify right side
    132,369.39x = 8,662,023,911.35
  5. Step 5: Solve for x
    x = 8,662,023,911.35/132,369.39
  6. Step 6: Final answer
    x = 65,438.27

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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.