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Finding the Fourth Proportional to 264,839.39, 365,485.57 and 143,989.01

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Solution

The fourth proportional to 264,839.39, 365,485.57 and 143,989.01 is: 198,708.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,839.39 : 365,485.57 = 143,989.01 : x
  2. Step 2: Convert to fraction form
    264,839.39/365,485.57 = 143,989.01/x
  3. Step 3: Cross multiply
    264,839.39x = 365,485.57 × 143,989.01
  4. Step 4: Simplify right side
    264,839.39x = 52,625,904,576.76
  5. Step 5: Solve for x
    x = 52,625,904,576.76/264,839.39
  6. Step 6: Final answer
    x = 198,708.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.