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Finding the Fourth Proportional to 80,710.38, 111,380.94 and 44,900.82

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Solution

The fourth proportional to 80,710.38, 111,380.94 and 44,900.82 is: 61,963.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,710.38 : 111,380.94 = 44,900.82 : x
  2. Step 2: Convert to fraction form
    80,710.38/111,380.94 = 44,900.82/x
  3. Step 3: Cross multiply
    80,710.38x = 111,380.94 × 44,900.82
  4. Step 4: Simplify right side
    80,710.38x = 5,001,095,538.37
  5. Step 5: Solve for x
    x = 5,001,095,538.37/80,710.38
  6. Step 6: Final answer
    x = 61,963.47

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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.