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Finding the Fourth Proportional to 262,089.39, 393,134.09 and 84,622.54

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Solution

The fourth proportional to 262,089.39, 393,134.09 and 84,622.54 is: 126,933.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,089.39 : 393,134.09 = 84,622.54 : x
  2. Step 2: Convert to fraction form
    262,089.39/393,134.09 = 84,622.54/x
  3. Step 3: Cross multiply
    262,089.39x = 393,134.09 × 84,622.54
  4. Step 4: Simplify right side
    262,089.39x = 33,268,005,256.39
  5. Step 5: Solve for x
    x = 33,268,005,256.39/262,089.39
  6. Step 6: Final answer
    x = 126,933.81

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Similar ratio
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1.5x scale

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.