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Finding the Fourth Proportional to 74,404.73, 102,622.27 and 51,732.38

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Solution

The fourth proportional to 74,404.73, 102,622.27 and 51,732.38 is: 71,351.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,404.73 : 102,622.27 = 51,732.38 : x
  2. Step 2: Convert to fraction form
    74,404.73/102,622.27 = 51,732.38/x
  3. Step 3: Cross multiply
    74,404.73x = 102,622.27 × 51,732.38
  4. Step 4: Simplify right side
    74,404.73x = 5,308,893,752.89
  5. Step 5: Solve for x
    x = 5,308,893,752.89/74,404.73
  6. Step 6: Final answer
    x = 71,351.56

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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.