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Finding the Fourth Proportional to 63,639.80, 87,832.50 and 45,793.88

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Solution

The fourth proportional to 63,639.80, 87,832.50 and 45,793.88 is: 63,202.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,639.80 : 87,832.50 = 45,793.88 : x
  2. Step 2: Convert to fraction form
    63,639.80/87,832.50 = 45,793.88/x
  3. Step 3: Cross multiply
    63,639.80x = 87,832.50 × 45,793.88
  4. Step 4: Simplify right side
    63,639.80x = 4,022,190,965.10
  5. Step 5: Solve for x
    x = 4,022,190,965.10/63,639.80
  6. Step 6: Final answer
    x = 63,202.45

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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.