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Finding the Fourth Proportional to 192,455.55, 288,847.35 and 86,003.33

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Solution

The fourth proportional to 192,455.55, 288,847.35 and 86,003.33 is: 129,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,455.55 : 288,847.35 = 86,003.33 : x
  2. Step 2: Convert to fraction form
    192,455.55/288,847.35 = 86,003.33/x
  3. Step 3: Cross multiply
    192,455.55x = 288,847.35 × 86,003.33
  4. Step 4: Simplify right side
    192,455.55x = 24,841,832,517.44
  5. Step 5: Solve for x
    x = 24,841,832,517.44/192,455.55
  6. Step 6: Final answer
    x = 129,078.29

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1.5x scale

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.