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Finding the Fourth Proportional to 111,314.52, 166,965.84 and 36,425.16

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Solution

The fourth proportional to 111,314.52, 166,965.84 and 36,425.16 is: 54,635.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,314.52 : 166,965.84 = 36,425.16 : x
  2. Step 2: Convert to fraction form
    111,314.52/166,965.84 = 36,425.16/x
  3. Step 3: Cross multiply
    111,314.52x = 166,965.84 × 36,425.16
  4. Step 4: Simplify right side
    111,314.52x = 6,081,757,436.53
  5. Step 5: Solve for x
    x = 6,081,757,436.53/111,314.52
  6. Step 6: Final answer
    x = 54,635.80

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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.