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Finding the Fourth Proportional to 57,504.92, 86,230.04 and 20,060.46

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Solution

The fourth proportional to 57,504.92, 86,230.04 and 20,060.46 is: 30,081.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,504.92 : 86,230.04 = 20,060.46 : x
  2. Step 2: Convert to fraction form
    57,504.92/86,230.04 = 20,060.46/x
  3. Step 3: Cross multiply
    57,504.92x = 86,230.04 × 20,060.46
  4. Step 4: Simplify right side
    57,504.92x = 1,729,814,268.22
  5. Step 5: Solve for x
    x = 1,729,814,268.22/57,504.92
  6. Step 6: Final answer
    x = 30,081.15

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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.