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Finding the Fourth Proportional to 99,704.79, 149,544.63 and 43,583.54

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Solution

The fourth proportional to 99,704.79, 149,544.63 and 43,583.54 is: 65,369.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,704.79 : 149,544.63 = 43,583.54 : x
  2. Step 2: Convert to fraction form
    99,704.79/149,544.63 = 43,583.54/x
  3. Step 3: Cross multiply
    99,704.79x = 149,544.63 × 43,583.54
  4. Step 4: Simplify right side
    99,704.79x = 6,517,683,615.67
  5. Step 5: Solve for x
    x = 6,517,683,615.67/99,704.79
  6. Step 6: Final answer
    x = 65,369.81

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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.