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Finding the Fourth Proportional to 74,993.80, 103,491.72 and 41,001.76

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Solution

The fourth proportional to 74,993.80, 103,491.72 and 41,001.76 is: 56,582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,993.80 : 103,491.72 = 41,001.76 : x
  2. Step 2: Convert to fraction form
    74,993.80/103,491.72 = 41,001.76/x
  3. Step 3: Cross multiply
    74,993.80x = 103,491.72 × 41,001.76
  4. Step 4: Simplify right side
    74,993.80x = 4,243,342,665.43
  5. Step 5: Solve for x
    x = 4,243,342,665.43/74,993.80
  6. Step 6: Final answer
    x = 56,582.58

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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.