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Finding the Fourth Proportional to 110,291.62, 165,511.55 and 109,885.81

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Solution

The fourth proportional to 110,291.62, 165,511.55 and 109,885.81 is: 164,902.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,291.62 : 165,511.55 = 109,885.81 : x
  2. Step 2: Convert to fraction form
    110,291.62/165,511.55 = 109,885.81/x
  3. Step 3: Cross multiply
    110,291.62x = 165,511.55 × 109,885.81
  4. Step 4: Simplify right side
    110,291.62x = 18,187,370,736.11
  5. Step 5: Solve for x
    x = 18,187,370,736.11/110,291.62
  6. Step 6: Final answer
    x = 164,902.56

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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.