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Finding the Fourth Proportional to 108,735.94, 162,949.58 and 45,487.90

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Solution

The fourth proportional to 108,735.94, 162,949.58 and 45,487.90 is: 68,167.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,735.94 : 162,949.58 = 45,487.90 : x
  2. Step 2: Convert to fraction form
    108,735.94/162,949.58 = 45,487.90/x
  3. Step 3: Cross multiply
    108,735.94x = 162,949.58 × 45,487.90
  4. Step 4: Simplify right side
    108,735.94x = 7,412,234,200.08
  5. Step 5: Solve for x
    x = 7,412,234,200.08/108,735.94
  6. Step 6: Final answer
    x = 68,167.29

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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.