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Finding the Fourth Proportional to 355,561.80, 532,478.70 and 188,982.60

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Solution

The fourth proportional to 355,561.80, 532,478.70 and 188,982.60 is: 283,014.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,561.80 : 532,478.70 = 188,982.60 : x
  2. Step 2: Convert to fraction form
    355,561.80/532,478.70 = 188,982.60/x
  3. Step 3: Cross multiply
    355,561.80x = 532,478.70 × 188,982.60
  4. Step 4: Simplify right side
    355,561.80x = 100,629,209,170.62
  5. Step 5: Solve for x
    x = 100,629,209,170.62/355,561.80
  6. Step 6: Final answer
    x = 283,014.68

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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.