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Finding the Fourth Proportional to 169,674.50, 254,399.42 and 80,941.70

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Solution

The fourth proportional to 169,674.50, 254,399.42 and 80,941.70 is: 121,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,674.50 : 254,399.42 = 80,941.70 : x
  2. Step 2: Convert to fraction form
    169,674.50/254,399.42 = 80,941.70/x
  3. Step 3: Cross multiply
    169,674.50x = 254,399.42 × 80,941.70
  4. Step 4: Simplify right side
    169,674.50x = 20,591,521,533.81
  5. Step 5: Solve for x
    x = 20,591,521,533.81/169,674.50
  6. Step 6: Final answer
    x = 121,358.96

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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.