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Finding the Fourth Proportional to 170,660.57, 256,023.81 and 65,471.33

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Solution

The fourth proportional to 170,660.57, 256,023.81 and 65,471.33 is: 98,219.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,660.57 : 256,023.81 = 65,471.33 : x
  2. Step 2: Convert to fraction form
    170,660.57/256,023.81 = 65,471.33/x
  3. Step 3: Cross multiply
    170,660.57x = 256,023.81 × 65,471.33
  4. Step 4: Simplify right side
    170,660.57x = 16,762,219,352.37
  5. Step 5: Solve for x
    x = 16,762,219,352.37/170,660.57
  6. Step 6: Final answer
    x = 98,219.64

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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.