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Finding the Fourth Proportional to 132,418.75, 198,629.96 and 73,369.75

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Solution

The fourth proportional to 132,418.75, 198,629.96 and 73,369.75 is: 110,055.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,418.75 : 198,629.96 = 73,369.75 : x
  2. Step 2: Convert to fraction form
    132,418.75/198,629.96 = 73,369.75/x
  3. Step 3: Cross multiply
    132,418.75x = 198,629.96 × 73,369.75
  4. Step 4: Simplify right side
    132,418.75x = 14,573,430,507.71
  5. Step 5: Solve for x
    x = 14,573,430,507.71/132,418.75
  6. Step 6: Final answer
    x = 110,055.64

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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.