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Finding the Fourth Proportional to 63,163.56, 87,165.15 and 34,868.64

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Solution

The fourth proportional to 63,163.56, 87,165.15 and 34,868.64 is: 48,118.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,163.56 : 87,165.15 = 34,868.64 : x
  2. Step 2: Convert to fraction form
    63,163.56/87,165.15 = 34,868.64/x
  3. Step 3: Cross multiply
    63,163.56x = 87,165.15 × 34,868.64
  4. Step 4: Simplify right side
    63,163.56x = 3,039,330,235.90
  5. Step 5: Solve for x
    x = 3,039,330,235.90/63,163.56
  6. Step 6: Final answer
    x = 48,118.41

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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.