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Finding the Fourth Proportional to 167,759.21, 231,431.42 and 99,737.60

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Solution

The fourth proportional to 167,759.21, 231,431.42 and 99,737.60 is: 137,592.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,759.21 : 231,431.42 = 99,737.60 : x
  2. Step 2: Convert to fraction form
    167,759.21/231,431.42 = 99,737.60/x
  3. Step 3: Cross multiply
    167,759.21x = 231,431.42 × 99,737.60
  4. Step 4: Simplify right side
    167,759.21x = 23,082,412,739.55
  5. Step 5: Solve for x
    x = 23,082,412,739.55/167,759.21
  6. Step 6: Final answer
    x = 137,592.53

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1.5x scale

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.