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Finding the Fourth Proportional to 74,807.74, 103,231.83 and 41,273.74

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Solution

The fourth proportional to 74,807.74, 103,231.83 and 41,273.74 is: 56,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,807.74 : 103,231.83 = 41,273.74 : x
  2. Step 2: Convert to fraction form
    74,807.74/103,231.83 = 41,273.74/x
  3. Step 3: Cross multiply
    74,807.74x = 103,231.83 × 41,273.74
  4. Step 4: Simplify right side
    74,807.74x = 4,260,763,711.14
  5. Step 5: Solve for x
    x = 4,260,763,711.14/74,807.74
  6. Step 6: Final answer
    x = 56,956.19

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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.