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Finding the Fourth Proportional to 73,801.80, 110,690.82 and 21,199.32

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Solution

The fourth proportional to 73,801.80, 110,690.82 and 21,199.32 is: 31,795.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,801.80 : 110,690.82 = 21,199.32 : x
  2. Step 2: Convert to fraction form
    73,801.80/110,690.82 = 21,199.32/x
  3. Step 3: Cross multiply
    73,801.80x = 110,690.82 × 21,199.32
  4. Step 4: Simplify right side
    73,801.80x = 2,346,570,114.24
  5. Step 5: Solve for x
    x = 2,346,570,114.24/73,801.80
  6. Step 6: Final answer
    x = 31,795.57

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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.