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Finding the Fourth Proportional to 353,315.60, 530,200.20 and 195,657.20

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Solution

The fourth proportional to 353,315.60, 530,200.20 and 195,657.20 is: 293,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,315.60 : 530,200.20 = 195,657.20 : x
  2. Step 2: Convert to fraction form
    353,315.60/530,200.20 = 195,657.20/x
  3. Step 3: Cross multiply
    353,315.60x = 530,200.20 × 195,657.20
  4. Step 4: Simplify right side
    353,315.60x = 103,737,486,571.44
  5. Step 5: Solve for x
    x = 103,737,486,571.44/353,315.60
  6. Step 6: Final answer
    x = 293,611.40

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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.