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Finding the Fourth Proportional to 73,796.80, 110,683.32 and 21,194.32

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Solution

The fourth proportional to 73,796.80, 110,683.32 and 21,194.32 is: 31,788.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,796.80 : 110,683.32 = 21,194.32 : x
  2. Step 2: Convert to fraction form
    73,796.80/110,683.32 = 21,194.32/x
  3. Step 3: Cross multiply
    73,796.80x = 110,683.32 × 21,194.32
  4. Step 4: Simplify right side
    73,796.80x = 2,345,857,702.74
  5. Step 5: Solve for x
    x = 2,345,857,702.74/73,796.80
  6. Step 6: Final answer
    x = 31,788.07

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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.