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Finding the Fourth Proportional to 68,937.24, 103,415.64 and 22,179.24

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Solution

The fourth proportional to 68,937.24, 103,415.64 and 22,179.24 is: 33,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,937.24 : 103,415.64 = 22,179.24 : x
  2. Step 2: Convert to fraction form
    68,937.24/103,415.64 = 22,179.24/x
  3. Step 3: Cross multiply
    68,937.24x = 103,415.64 × 22,179.24
  4. Step 4: Simplify right side
    68,937.24x = 2,293,680,299.31
  5. Step 5: Solve for x
    x = 2,293,680,299.31/68,937.24
  6. Step 6: Final answer
    x = 33,272.01

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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.