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Finding the Fourth Proportional to 165,224.60, 247,697.58 and 71,659.88

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Solution

The fourth proportional to 165,224.60, 247,697.58 and 71,659.88 is: 107,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,224.60 : 247,697.58 = 71,659.88 : x
  2. Step 2: Convert to fraction form
    165,224.60/247,697.58 = 71,659.88/x
  3. Step 3: Cross multiply
    165,224.60x = 247,697.58 × 71,659.88
  4. Step 4: Simplify right side
    165,224.60x = 17,749,978,859.09
  5. Step 5: Solve for x
    x = 17,749,978,859.09/165,224.60
  6. Step 6: Final answer
    x = 107,429.40

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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.