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Finding the Fourth Proportional to 262,879.53, 362,773.94 and 142,020.77

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Solution

The fourth proportional to 262,879.53, 362,773.94 and 142,020.77 is: 195,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,879.53 : 362,773.94 = 142,020.77 : x
  2. Step 2: Convert to fraction form
    262,879.53/362,773.94 = 142,020.77/x
  3. Step 3: Cross multiply
    262,879.53x = 362,773.94 × 142,020.77
  4. Step 4: Simplify right side
    262,879.53x = 51,521,434,294.73
  5. Step 5: Solve for x
    x = 51,521,434,294.73/262,879.53
  6. Step 6: Final answer
    x = 195,988.76

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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.