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Finding the Fourth Proportional to 169,871.56, 254,773.86 and 161,441.80

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Solution

The fourth proportional to 169,871.56, 254,773.86 and 161,441.80 is: 242,130.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,871.56 : 254,773.86 = 161,441.80 : x
  2. Step 2: Convert to fraction form
    169,871.56/254,773.86 = 161,441.80/x
  3. Step 3: Cross multiply
    169,871.56x = 254,773.86 × 161,441.80
  4. Step 4: Simplify right side
    169,871.56x = 41,131,150,551.35
  5. Step 5: Solve for x
    x = 41,131,150,551.35/169,871.56
  6. Step 6: Final answer
    x = 242,130.88

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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.