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Finding the Fourth Proportional to 108,491.43, 162,622.33 and 49,368.62

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Solution

The fourth proportional to 108,491.43, 162,622.33 and 49,368.62 is: 74,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,491.43 : 162,622.33 = 49,368.62 : x
  2. Step 2: Convert to fraction form
    108,491.43/162,622.33 = 49,368.62/x
  3. Step 3: Cross multiply
    108,491.43x = 162,622.33 × 49,368.62
  4. Step 4: Simplify right side
    108,491.43x = 8,028,439,766.44
  5. Step 5: Solve for x
    x = 8,028,439,766.44/108,491.43
  6. Step 6: Final answer
    x = 74,000.68

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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.