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Finding the Fourth Proportional to 73,672.56, 110,416.44 and 31,503.14

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Solution

The fourth proportional to 73,672.56, 110,416.44 and 31,503.14 is: 47,215.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,672.56 : 110,416.44 = 31,503.14 : x
  2. Step 2: Convert to fraction form
    73,672.56/110,416.44 = 31,503.14/x
  3. Step 3: Cross multiply
    73,672.56x = 110,416.44 × 31,503.14
  4. Step 4: Simplify right side
    73,672.56x = 3,478,464,015.54
  5. Step 5: Solve for x
    x = 3,478,464,015.54/73,672.56
  6. Step 6: Final answer
    x = 47,215.19

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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.