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Finding the Fourth Proportional to 110,273.60, 165,329.40 and 43,680.80

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Solution

The fourth proportional to 110,273.60, 165,329.40 and 43,680.80 is: 65,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,273.60 : 165,329.40 = 43,680.80 : x
  2. Step 2: Convert to fraction form
    110,273.60/165,329.40 = 43,680.80/x
  3. Step 3: Cross multiply
    110,273.60x = 165,329.40 × 43,680.80
  4. Step 4: Simplify right side
    110,273.60x = 7,221,720,455.52
  5. Step 5: Solve for x
    x = 7,221,720,455.52/110,273.60
  6. Step 6: Final answer
    x = 65,489.11

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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.