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Finding the Fourth Proportional to 69,249.55, 95,725.82 and 61,770.01

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Solution

The fourth proportional to 69,249.55, 95,725.82 and 61,770.01 is: 85,386.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,249.55 : 95,725.82 = 61,770.01 : x
  2. Step 2: Convert to fraction form
    69,249.55/95,725.82 = 61,770.01/x
  3. Step 3: Cross multiply
    69,249.55x = 95,725.82 × 61,770.01
  4. Step 4: Simplify right side
    69,249.55x = 5,912,984,858.66
  5. Step 5: Solve for x
    x = 5,912,984,858.66/69,249.55
  6. Step 6: Final answer
    x = 85,386.62

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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.