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Finding the Fourth Proportional to 69,137.40, 103,633.20 and 27,001.20

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Solution

The fourth proportional to 69,137.40, 103,633.20 and 27,001.20 is: 40,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,137.40 : 103,633.20 = 27,001.20 : x
  2. Step 2: Convert to fraction form
    69,137.40/103,633.20 = 27,001.20/x
  3. Step 3: Cross multiply
    69,137.40x = 103,633.20 × 27,001.20
  4. Step 4: Simplify right side
    69,137.40x = 2,798,220,759.84
  5. Step 5: Solve for x
    x = 2,798,220,759.84/69,137.40
  6. Step 6: Final answer
    x = 40,473.33

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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.