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Finding the Fourth Proportional to 111,327.16, 166,928.28 and 48,107.80

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Solution

The fourth proportional to 111,327.16, 166,928.28 and 48,107.80 is: 72,134.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,327.16 : 166,928.28 = 48,107.80 : x
  2. Step 2: Convert to fraction form
    111,327.16/166,928.28 = 48,107.80/x
  3. Step 3: Cross multiply
    111,327.16x = 166,928.28 × 48,107.80
  4. Step 4: Simplify right side
    111,327.16x = 8,030,552,308.58
  5. Step 5: Solve for x
    x = 8,030,552,308.58/111,327.16
  6. Step 6: Final answer
    x = 72,134.71

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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.