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Finding the Fourth Proportional to 67,841.30, 101,745.36 and 53,013.44

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Solution

The fourth proportional to 67,841.30, 101,745.36 and 53,013.44 is: 79,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,841.30 : 101,745.36 = 53,013.44 : x
  2. Step 2: Convert to fraction form
    67,841.30/101,745.36 = 53,013.44/x
  3. Step 3: Cross multiply
    67,841.30x = 101,745.36 × 53,013.44
  4. Step 4: Simplify right side
    67,841.30x = 5,393,871,537.64
  5. Step 5: Solve for x
    x = 5,393,871,537.64/67,841.30
  6. Step 6: Final answer
    x = 79,507.20

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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.