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Finding the Fourth Proportional to 63,187.85, 87,199.11 and 36,335.54

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Solution

The fourth proportional to 63,187.85, 87,199.11 and 36,335.54 is: 50,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,187.85 : 87,199.11 = 36,335.54 : x
  2. Step 2: Convert to fraction form
    63,187.85/87,199.11 = 36,335.54/x
  3. Step 3: Cross multiply
    63,187.85x = 87,199.11 × 36,335.54
  4. Step 4: Simplify right side
    63,187.85x = 3,168,426,313.37
  5. Step 5: Solve for x
    x = 3,168,426,313.37/63,187.85
  6. Step 6: Final answer
    x = 50,142.97

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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.