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Finding the Fourth Proportional to 73,815.60, 110,723.40 and 29,449.20

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Solution

The fourth proportional to 73,815.60, 110,723.40 and 29,449.20 is: 44,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,815.60 : 110,723.40 = 29,449.20 : x
  2. Step 2: Convert to fraction form
    73,815.60/110,723.40 = 29,449.20/x
  3. Step 3: Cross multiply
    73,815.60x = 110,723.40 × 29,449.20
  4. Step 4: Simplify right side
    73,815.60x = 3,260,715,551.28
  5. Step 5: Solve for x
    x = 3,260,715,551.28/73,815.60
  6. Step 6: Final answer
    x = 44,173.80

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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.