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Finding the Fourth Proportional to 363,971.60, 545,860.20 and 111,251.60

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Solution

The fourth proportional to 363,971.60, 545,860.20 and 111,251.60 is: 166,847.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,971.60 : 545,860.20 = 111,251.60 : x
  2. Step 2: Convert to fraction form
    363,971.60/545,860.20 = 111,251.60/x
  3. Step 3: Cross multiply
    363,971.60x = 545,860.20 × 111,251.60
  4. Step 4: Simplify right side
    363,971.60x = 60,727,820,626.32
  5. Step 5: Solve for x
    x = 60,727,820,626.32/363,971.60
  6. Step 6: Final answer
    x = 166,847.69

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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.