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Finding the Fourth Proportional to 110,659.40, 165,989.10 and 27,553.40

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Solution

The fourth proportional to 110,659.40, 165,989.10 and 27,553.40 is: 41,330.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,659.40 : 165,989.10 = 27,553.40 : x
  2. Step 2: Convert to fraction form
    110,659.40/165,989.10 = 27,553.40/x
  3. Step 3: Cross multiply
    110,659.40x = 165,989.10 × 27,553.40
  4. Step 4: Simplify right side
    110,659.40x = 4,573,564,067.94
  5. Step 5: Solve for x
    x = 4,573,564,067.94/110,659.40
  6. Step 6: Final answer
    x = 41,330.10

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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.