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Finding the Fourth Proportional to 110,620.10, 165,800.55 and 82,885.70

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Solution

The fourth proportional to 110,620.10, 165,800.55 and 82,885.70 is: 124,231.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,620.10 : 165,800.55 = 82,885.70 : x
  2. Step 2: Convert to fraction form
    110,620.10/165,800.55 = 82,885.70/x
  3. Step 3: Cross multiply
    110,620.10x = 165,800.55 × 82,885.70
  4. Step 4: Simplify right side
    110,620.10x = 13,742,494,647.14
  5. Step 5: Solve for x
    x = 13,742,494,647.14/110,620.10
  6. Step 6: Final answer
    x = 124,231.44

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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.