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Finding the Fourth Proportional to 330,847.30, 496,125.15 and 131,101.30

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Solution

The fourth proportional to 330,847.30, 496,125.15 and 131,101.30 is: 196,594.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,847.30 : 496,125.15 = 131,101.30 : x
  2. Step 2: Convert to fraction form
    330,847.30/496,125.15 = 131,101.30/x
  3. Step 3: Cross multiply
    330,847.30x = 496,125.15 × 131,101.30
  4. Step 4: Simplify right side
    330,847.30x = 65,042,652,127.70
  5. Step 5: Solve for x
    x = 65,042,652,127.70/330,847.30
  6. Step 6: Final answer
    x = 196,594.18

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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.