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Finding the Fourth Proportional to 71,767.72, 107,662.52 and 36,695.53

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Solution

The fourth proportional to 71,767.72, 107,662.52 and 36,695.53 is: 55,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,767.72 : 107,662.52 = 36,695.53 : x
  2. Step 2: Convert to fraction form
    71,767.72/107,662.52 = 36,695.53/x
  3. Step 3: Cross multiply
    71,767.72x = 107,662.52 × 36,695.53
  4. Step 4: Simplify right side
    71,767.72x = 3,950,733,232.54
  5. Step 5: Solve for x
    x = 3,950,733,232.54/71,767.72
  6. Step 6: Final answer
    x = 55,048.89

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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.