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Finding the Fourth Proportional to 71,693.33, 107,539.94 and 21,773.22

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Solution

The fourth proportional to 71,693.33, 107,539.94 and 21,773.22 is: 32,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,693.33 : 107,539.94 = 21,773.22 : x
  2. Step 2: Convert to fraction form
    71,693.33/107,539.94 = 21,773.22/x
  3. Step 3: Cross multiply
    71,693.33x = 107,539.94 × 21,773.22
  4. Step 4: Simplify right side
    71,693.33x = 2,341,490,663.54
  5. Step 5: Solve for x
    x = 2,341,490,663.54/71,693.33
  6. Step 6: Final answer
    x = 32,659.81

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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.