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Finding the Fourth Proportional to 68,783.59, 103,175.85 and 22,036.48

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Solution

The fourth proportional to 68,783.59, 103,175.85 and 22,036.48 is: 33,054.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,783.59 : 103,175.85 = 22,036.48 : x
  2. Step 2: Convert to fraction form
    68,783.59/103,175.85 = 22,036.48/x
  3. Step 3: Cross multiply
    68,783.59x = 103,175.85 × 22,036.48
  4. Step 4: Simplify right side
    68,783.59x = 2,273,632,555.01
  5. Step 5: Solve for x
    x = 2,273,632,555.01/68,783.59
  6. Step 6: Final answer
    x = 33,054.87

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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.