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Finding the Fourth Proportional to 295,003.80, 442,522.17 and 84,636

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Solution

The fourth proportional to 295,003.80, 442,522.17 and 84,636 is: 126,958.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,003.80 : 442,522.17 = 84,636 : x
  2. Step 2: Convert to fraction form
    295,003.80/442,522.17 = 84,636/x
  3. Step 3: Cross multiply
    295,003.80x = 442,522.17 × 84,636
  4. Step 4: Simplify right side
    295,003.80x = 37,453,306,380.12
  5. Step 5: Solve for x
    x = 37,453,306,380.12/295,003.80
  6. Step 6: Final answer
    x = 126,958.73

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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.