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Finding the Fourth Proportional to 115,163.42, 172,706.54 and 44,069.54

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Solution

The fourth proportional to 115,163.42, 172,706.54 and 44,069.54 is: 66,089.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,163.42 : 172,706.54 = 44,069.54 : x
  2. Step 2: Convert to fraction form
    115,163.42/172,706.54 = 44,069.54/x
  3. Step 3: Cross multiply
    115,163.42x = 172,706.54 × 44,069.54
  4. Step 4: Simplify right side
    115,163.42x = 7,611,097,772.79
  5. Step 5: Solve for x
    x = 7,611,097,772.79/115,163.42
  6. Step 6: Final answer
    x = 66,089.54

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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.