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Finding the Fourth Proportional to 196,099.58, 294,052.21 and 69,720.89

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Solution

The fourth proportional to 196,099.58, 294,052.21 and 69,720.89 is: 104,546.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,099.58 : 294,052.21 = 69,720.89 : x
  2. Step 2: Convert to fraction form
    196,099.58/294,052.21 = 69,720.89/x
  3. Step 3: Cross multiply
    196,099.58x = 294,052.21 × 69,720.89
  4. Step 4: Simplify right side
    196,099.58x = 20,501,580,143.10
  5. Step 5: Solve for x
    x = 20,501,580,143.10/196,099.58
  6. Step 6: Final answer
    x = 104,546.78

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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.