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Finding the Fourth Proportional to 170,208.56, 255,238.94 and 57,858.56

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Solution

The fourth proportional to 170,208.56, 255,238.94 and 57,858.56 is: 86,762.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,208.56 : 255,238.94 = 57,858.56 : x
  2. Step 2: Convert to fraction form
    170,208.56/255,238.94 = 57,858.56/x
  3. Step 3: Cross multiply
    170,208.56x = 255,238.94 × 57,858.56
  4. Step 4: Simplify right side
    170,208.56x = 14,767,757,524.33
  5. Step 5: Solve for x
    x = 14,767,757,524.33/170,208.56
  6. Step 6: Final answer
    x = 86,762.72

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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.