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Finding the Fourth Proportional to 353,102.80, 529,654.20 and 195,638.80

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Solution

The fourth proportional to 353,102.80, 529,654.20 and 195,638.80 is: 293,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,102.80 : 529,654.20 = 195,638.80 : x
  2. Step 2: Convert to fraction form
    353,102.80/529,654.20 = 195,638.80/x
  3. Step 3: Cross multiply
    353,102.80x = 529,654.20 × 195,638.80
  4. Step 4: Simplify right side
    353,102.80x = 103,620,912,102.96
  5. Step 5: Solve for x
    x = 103,620,912,102.96/353,102.80
  6. Step 6: Final answer
    x = 293,458.20

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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.