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Finding the Fourth Proportional to 80,320.53, 110,845.17 and 48,483.21

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Solution

The fourth proportional to 80,320.53, 110,845.17 and 48,483.21 is: 66,908.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,320.53 : 110,845.17 = 48,483.21 : x
  2. Step 2: Convert to fraction form
    80,320.53/110,845.17 = 48,483.21/x
  3. Step 3: Cross multiply
    80,320.53x = 110,845.17 × 48,483.21
  4. Step 4: Simplify right side
    80,320.53x = 5,374,129,654.60
  5. Step 5: Solve for x
    x = 5,374,129,654.60/80,320.53
  6. Step 6: Final answer
    x = 66,908.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.