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Finding the Fourth Proportional to 110,659.60, 165,770.70 and 60,650.20

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Solution

The fourth proportional to 110,659.60, 165,770.70 and 60,650.20 is: 90,855.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,659.60 : 165,770.70 = 60,650.20 : x
  2. Step 2: Convert to fraction form
    110,659.60/165,770.70 = 60,650.20/x
  3. Step 3: Cross multiply
    110,659.60x = 165,770.70 × 60,650.20
  4. Step 4: Simplify right side
    110,659.60x = 10,054,026,109.14
  5. Step 5: Solve for x
    x = 10,054,026,109.14/110,659.60
  6. Step 6: Final answer
    x = 90,855.44

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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.