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Finding the Fourth Proportional to 69,573.22, 104,368.14 and 22,171.90

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Solution

The fourth proportional to 69,573.22, 104,368.14 and 22,171.90 is: 33,260.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,573.22 : 104,368.14 = 22,171.90 : x
  2. Step 2: Convert to fraction form
    69,573.22/104,368.14 = 22,171.90/x
  3. Step 3: Cross multiply
    69,573.22x = 104,368.14 × 22,171.90
  4. Step 4: Simplify right side
    69,573.22x = 2,314,039,963.27
  5. Step 5: Solve for x
    x = 2,314,039,963.27/69,573.22
  6. Step 6: Final answer
    x = 33,260.50

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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.