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Finding the Fourth Proportional to 67,982.34, 101,755.15 and 36,313.21

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Solution

The fourth proportional to 67,982.34, 101,755.15 and 36,313.21 is: 54,353.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,982.34 : 101,755.15 = 36,313.21 : x
  2. Step 2: Convert to fraction form
    67,982.34/101,755.15 = 36,313.21/x
  3. Step 3: Cross multiply
    67,982.34x = 101,755.15 × 36,313.21
  4. Step 4: Simplify right side
    67,982.34x = 3,695,055,994.36
  5. Step 5: Solve for x
    x = 3,695,055,994.36/67,982.34
  6. Step 6: Final answer
    x = 54,353.18

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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.