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Finding the Fourth Proportional to 111,076.60, 166,614.90 and 84,832.60

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Solution

The fourth proportional to 111,076.60, 166,614.90 and 84,832.60 is: 127,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,076.60 : 166,614.90 = 84,832.60 : x
  2. Step 2: Convert to fraction form
    111,076.60/166,614.90 = 84,832.60/x
  3. Step 3: Cross multiply
    111,076.60x = 166,614.90 × 84,832.60
  4. Step 4: Simplify right side
    111,076.60x = 14,134,375,165.74
  5. Step 5: Solve for x
    x = 14,134,375,165.74/111,076.60
  6. Step 6: Final answer
    x = 127,248.90

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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.