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Finding the Fourth Proportional to 101,157.10, 151,796.40 and 41,986.60

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Solution

The fourth proportional to 101,157.10, 151,796.40 and 41,986.60 is: 63,005.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,157.10 : 151,796.40 = 41,986.60 : x
  2. Step 2: Convert to fraction form
    101,157.10/151,796.40 = 41,986.60/x
  3. Step 3: Cross multiply
    101,157.10x = 151,796.40 × 41,986.60
  4. Step 4: Simplify right side
    101,157.10x = 6,373,414,728.24
  5. Step 5: Solve for x
    x = 6,373,414,728.24/101,157.10
  6. Step 6: Final answer
    x = 63,005.12

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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.