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Finding the Fourth Proportional to 67,980.50, 101,993.24 and 36,383.52

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Solution

The fourth proportional to 67,980.50, 101,993.24 and 36,383.52 is: 54,587.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,980.50 : 101,993.24 = 36,383.52 : x
  2. Step 2: Convert to fraction form
    67,980.50/101,993.24 = 36,383.52/x
  3. Step 3: Cross multiply
    67,980.50x = 101,993.24 × 36,383.52
  4. Step 4: Simplify right side
    67,980.50x = 3,710,873,087.40
  5. Step 5: Solve for x
    x = 3,710,873,087.40/67,980.50
  6. Step 6: Final answer
    x = 54,587.32

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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.