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Finding the Fourth Proportional to 255,670.77, 352,837.67 and 142,494.33

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Solution

The fourth proportional to 255,670.77, 352,837.67 and 142,494.33 is: 196,648.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,670.77 : 352,837.67 = 142,494.33 : x
  2. Step 2: Convert to fraction form
    255,670.77/352,837.67 = 142,494.33/x
  3. Step 3: Cross multiply
    255,670.77x = 352,837.67 × 142,494.33
  4. Step 4: Simplify right side
    255,670.77x = 50,277,366,672.94
  5. Step 5: Solve for x
    x = 50,277,366,672.94/255,670.77
  6. Step 6: Final answer
    x = 196,648.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.