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Finding the Fourth Proportional to 111,293.35, 166,938.53 and 27,053.28

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Solution

The fourth proportional to 111,293.35, 166,938.53 and 27,053.28 is: 40,579.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,293.35 : 166,938.53 = 27,053.28 : x
  2. Step 2: Convert to fraction form
    111,293.35/166,938.53 = 27,053.28/x
  3. Step 3: Cross multiply
    111,293.35x = 166,938.53 × 27,053.28
  4. Step 4: Simplify right side
    111,293.35x = 4,516,234,794.88
  5. Step 5: Solve for x
    x = 4,516,234,794.88/111,293.35
  6. Step 6: Final answer
    x = 40,579.56

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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.