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Finding the Fourth Proportional to 115,374.81, 173,080.52 and 48,815.44

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Solution

The fourth proportional to 115,374.81, 173,080.52 and 48,815.44 is: 73,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,374.81 : 173,080.52 = 48,815.44 : x
  2. Step 2: Convert to fraction form
    115,374.81/173,080.52 = 48,815.44/x
  3. Step 3: Cross multiply
    115,374.81x = 173,080.52 × 48,815.44
  4. Step 4: Simplify right side
    115,374.81x = 8,449,001,245.51
  5. Step 5: Solve for x
    x = 8,449,001,245.51/115,374.81
  6. Step 6: Final answer
    x = 73,230.90

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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.