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Finding the Fourth Proportional to 110,272.60, 165,327.90 and 43,679.80

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Solution

The fourth proportional to 110,272.60, 165,327.90 and 43,679.80 is: 65,487.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,272.60 : 165,327.90 = 43,679.80 : x
  2. Step 2: Convert to fraction form
    110,272.60/165,327.90 = 43,679.80/x
  3. Step 3: Cross multiply
    110,272.60x = 165,327.90 × 43,679.80
  4. Step 4: Simplify right side
    110,272.60x = 7,221,489,606.42
  5. Step 5: Solve for x
    x = 7,221,489,606.42/110,272.60
  6. Step 6: Final answer
    x = 65,487.62

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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.