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Finding the Fourth Proportional to 99,563.56, 137,396.99 and 54,241.53

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Solution

The fourth proportional to 99,563.56, 137,396.99 and 54,241.53 is: 74,852.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,563.56 : 137,396.99 = 54,241.53 : x
  2. Step 2: Convert to fraction form
    99,563.56/137,396.99 = 54,241.53/x
  3. Step 3: Cross multiply
    99,563.56x = 137,396.99 × 54,241.53
  4. Step 4: Simplify right side
    99,563.56x = 7,452,622,575.36
  5. Step 5: Solve for x
    x = 7,452,622,575.36/99,563.56
  6. Step 6: Final answer
    x = 74,852.92

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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.