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Finding the Fourth Proportional to 108,374.70, 162,540.45 and 52,214.70

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Solution

The fourth proportional to 108,374.70, 162,540.45 and 52,214.70 is: 78,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,374.70 : 162,540.45 = 52,214.70 : x
  2. Step 2: Convert to fraction form
    108,374.70/162,540.45 = 52,214.70/x
  3. Step 3: Cross multiply
    108,374.70x = 162,540.45 × 52,214.70
  4. Step 4: Simplify right side
    108,374.70x = 8,487,000,834.62
  5. Step 5: Solve for x
    x = 8,487,000,834.62/108,374.70
  6. Step 6: Final answer
    x = 78,311.64

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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.