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Finding the Fourth Proportional to 196,890.60, 295,408.80 and 189,600.60

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Solution

The fourth proportional to 196,890.60, 295,408.80 and 189,600.60 is: 284,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,890.60 : 295,408.80 = 189,600.60 : x
  2. Step 2: Convert to fraction form
    196,890.60/295,408.80 = 189,600.60/x
  3. Step 3: Cross multiply
    196,890.60x = 295,408.80 × 189,600.60
  4. Step 4: Simplify right side
    196,890.60x = 56,009,685,725.28
  5. Step 5: Solve for x
    x = 56,009,685,725.28/196,890.60
  6. Step 6: Final answer
    x = 284,471.10

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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.