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Finding the Fourth Proportional to 71,804.99, 107,723.03 and 21,883.77

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Solution

The fourth proportional to 71,804.99, 107,723.03 and 21,883.77 is: 32,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,804.99 : 107,723.03 = 21,883.77 : x
  2. Step 2: Convert to fraction form
    71,804.99/107,723.03 = 21,883.77/x
  3. Step 3: Cross multiply
    71,804.99x = 107,723.03 × 21,883.77
  4. Step 4: Simplify right side
    71,804.99x = 2,357,385,902.80
  5. Step 5: Solve for x
    x = 2,357,385,902.80/71,804.99
  6. Step 6: Final answer
    x = 32,830.39

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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.