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Finding the Fourth Proportional to 73,620.87, 110,213.15 and 45,450.35

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Solution

The fourth proportional to 73,620.87, 110,213.15 and 45,450.35 is: 68,040.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,620.87 : 110,213.15 = 45,450.35 : x
  2. Step 2: Convert to fraction form
    73,620.87/110,213.15 = 45,450.35/x
  3. Step 3: Cross multiply
    73,620.87x = 110,213.15 × 45,450.35
  4. Step 4: Simplify right side
    73,620.87x = 5,009,225,463.79
  5. Step 5: Solve for x
    x = 5,009,225,463.79/73,620.87
  6. Step 6: Final answer
    x = 68,040.83

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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.