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Finding the Fourth Proportional to 353,168.20, 530,043.90 and 163,919.80

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Solution

The fourth proportional to 353,168.20, 530,043.90 and 163,919.80 is: 246,015.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,168.20 : 530,043.90 = 163,919.80 : x
  2. Step 2: Convert to fraction form
    353,168.20/530,043.90 = 163,919.80/x
  3. Step 3: Cross multiply
    353,168.20x = 530,043.90 × 163,919.80
  4. Step 4: Simplify right side
    353,168.20x = 86,884,690,079.22
  5. Step 5: Solve for x
    x = 86,884,690,079.22/353,168.20
  6. Step 6: Final answer
    x = 246,015.04

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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.