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Finding the Fourth Proportional to 111,301.72, 166,966.62 and 41,181.64

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Solution

The fourth proportional to 111,301.72, 166,966.62 and 41,181.64 is: 61,777.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,301.72 : 166,966.62 = 41,181.64 : x
  2. Step 2: Convert to fraction form
    111,301.72/166,966.62 = 41,181.64/x
  3. Step 3: Cross multiply
    111,301.72x = 166,966.62 × 41,181.64
  4. Step 4: Simplify right side
    111,301.72x = 6,875,959,236.86
  5. Step 5: Solve for x
    x = 6,875,959,236.86/111,301.72
  6. Step 6: Final answer
    x = 61,777.65

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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.