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Finding the Fourth Proportional to 68,769.62, 103,155.86 and 22,022.36

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Solution

The fourth proportional to 68,769.62, 103,155.86 and 22,022.36 is: 33,034.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,769.62 : 103,155.86 = 22,022.36 : x
  2. Step 2: Convert to fraction form
    68,769.62/103,155.86 = 22,022.36/x
  3. Step 3: Cross multiply
    68,769.62x = 103,155.86 × 22,022.36
  4. Step 4: Simplify right side
    68,769.62x = 2,271,735,485.03
  5. Step 5: Solve for x
    x = 2,271,735,485.03/68,769.62
  6. Step 6: Final answer
    x = 33,034.00

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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.