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Finding the Fourth Proportional to 111,045.30, 166,579.62 and 36,171.28

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Solution

The fourth proportional to 111,045.30, 166,579.62 and 36,171.28 is: 54,260.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,045.30 : 166,579.62 = 36,171.28 : x
  2. Step 2: Convert to fraction form
    111,045.30/166,579.62 = 36,171.28/x
  3. Step 3: Cross multiply
    111,045.30x = 166,579.62 × 36,171.28
  4. Step 4: Simplify right side
    111,045.30x = 6,025,398,077.31
  5. Step 5: Solve for x
    x = 6,025,398,077.31/111,045.30
  6. Step 6: Final answer
    x = 54,260.72

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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.