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Finding the Fourth Proportional to 169,434.77, 254,144.46 and 74,639.62

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Solution

The fourth proportional to 169,434.77, 254,144.46 and 74,639.62 is: 111,956.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,434.77 : 254,144.46 = 74,639.62 : x
  2. Step 2: Convert to fraction form
    169,434.77/254,144.46 = 74,639.62/x
  3. Step 3: Cross multiply
    169,434.77x = 254,144.46 × 74,639.62
  4. Step 4: Simplify right side
    169,434.77x = 18,969,245,284.14
  5. Step 5: Solve for x
    x = 18,969,245,284.14/169,434.77
  6. Step 6: Final answer
    x = 111,956.04

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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.