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Finding the Fourth Proportional to 114,665.66, 171,942.85 and 48,087.91

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Solution

The fourth proportional to 114,665.66, 171,942.85 and 48,087.91 is: 72,108.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,665.66 : 171,942.85 = 48,087.91 : x
  2. Step 2: Convert to fraction form
    114,665.66/171,942.85 = 48,087.91/x
  3. Step 3: Cross multiply
    114,665.66x = 171,942.85 × 48,087.91
  4. Step 4: Simplify right side
    114,665.66x = 8,268,372,570.98
  5. Step 5: Solve for x
    x = 8,268,372,570.98/114,665.66
  6. Step 6: Final answer
    x = 72,108.53

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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.