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Finding the Fourth Proportional to 69,682.89, 96,160.19 and 39,471.01

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Solution

The fourth proportional to 69,682.89, 96,160.19 and 39,471.01 is: 54,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,682.89 : 96,160.19 = 39,471.01 : x
  2. Step 2: Convert to fraction form
    69,682.89/96,160.19 = 39,471.01/x
  3. Step 3: Cross multiply
    69,682.89x = 96,160.19 × 39,471.01
  4. Step 4: Simplify right side
    69,682.89x = 3,795,539,821.09
  5. Step 5: Solve for x
    x = 3,795,539,821.09/69,682.89
  6. Step 6: Final answer
    x = 54,468.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.