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Finding the Fourth Proportional to 108,380.44, 162,599.88 and 45,179.56

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Solution

The fourth proportional to 108,380.44, 162,599.88 and 45,179.56 is: 67,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,380.44 : 162,599.88 = 45,179.56 : x
  2. Step 2: Convert to fraction form
    108,380.44/162,599.88 = 45,179.56/x
  3. Step 3: Cross multiply
    108,380.44x = 162,599.88 × 45,179.56
  4. Step 4: Simplify right side
    108,380.44x = 7,346,191,034.45
  5. Step 5: Solve for x
    x = 7,346,191,034.45/108,380.44
  6. Step 6: Final answer
    x = 67,781.52

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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.