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Finding the Fourth Proportional to 63,190.85, 87,203.25 and 36,338.54

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Solution

The fourth proportional to 63,190.85, 87,203.25 and 36,338.54 is: 50,147.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,190.85 : 87,203.25 = 36,338.54 : x
  2. Step 2: Convert to fraction form
    63,190.85/87,203.25 = 36,338.54/x
  3. Step 3: Cross multiply
    63,190.85x = 87,203.25 × 36,338.54
  4. Step 4: Simplify right side
    63,190.85x = 3,168,838,352.24
  5. Step 5: Solve for x
    x = 3,168,838,352.24/63,190.85
  6. Step 6: Final answer
    x = 50,147.11

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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.