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Finding the Fourth Proportional to 110,109.20, 165,034.20 and 57,491.60

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Solution

The fourth proportional to 110,109.20, 165,034.20 and 57,491.60 is: 86,169.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,109.20 : 165,034.20 = 57,491.60 : x
  2. Step 2: Convert to fraction form
    110,109.20/165,034.20 = 57,491.60/x
  3. Step 3: Cross multiply
    110,109.20x = 165,034.20 × 57,491.60
  4. Step 4: Simplify right side
    110,109.20x = 9,488,080,212.72
  5. Step 5: Solve for x
    x = 9,488,080,212.72/110,109.20
  6. Step 6: Final answer
    x = 86,169.73

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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.