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Finding the Fourth Proportional to 115,374.60, 173,079.90 and 36,481.32

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Solution

The fourth proportional to 115,374.60, 173,079.90 and 36,481.32 is: 54,727.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,374.60 : 173,079.90 = 36,481.32 : x
  2. Step 2: Convert to fraction form
    115,374.60/173,079.90 = 36,481.32/x
  3. Step 3: Cross multiply
    115,374.60x = 173,079.90 × 36,481.32
  4. Step 4: Simplify right side
    115,374.60x = 6,314,183,217.47
  5. Step 5: Solve for x
    x = 6,314,183,217.47/115,374.60
  6. Step 6: Final answer
    x = 54,727.67

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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.