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Finding the Fourth Proportional to 108,369.20, 162,532.20 and 52,209.20

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Solution

The fourth proportional to 108,369.20, 162,532.20 and 52,209.20 is: 78,303.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,369.20 : 162,532.20 = 52,209.20 : x
  2. Step 2: Convert to fraction form
    108,369.20/162,532.20 = 52,209.20/x
  3. Step 3: Cross multiply
    108,369.20x = 162,532.20 × 52,209.20
  4. Step 4: Simplify right side
    108,369.20x = 8,485,676,136.24
  5. Step 5: Solve for x
    x = 8,485,676,136.24/108,369.20
  6. Step 6: Final answer
    x = 78,303.39

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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.