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Finding the Fourth Proportional to 235,890.80, 353,447.40 and 196,233.20

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Solution

The fourth proportional to 235,890.80, 353,447.40 and 196,233.20 is: 294,026.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,890.80 : 353,447.40 = 196,233.20 : x
  2. Step 2: Convert to fraction form
    235,890.80/353,447.40 = 196,233.20/x
  3. Step 3: Cross multiply
    235,890.80x = 353,447.40 × 196,233.20
  4. Step 4: Simplify right side
    235,890.80x = 69,358,114,333.68
  5. Step 5: Solve for x
    x = 69,358,114,333.68/235,890.80
  6. Step 6: Final answer
    x = 294,026.36

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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.