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Finding the Fourth Proportional to 74,924.73, 103,396.50 and 40,933.89

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Solution

The fourth proportional to 74,924.73, 103,396.50 and 40,933.89 is: 56,488.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,924.73 : 103,396.50 = 40,933.89 : x
  2. Step 2: Convert to fraction form
    74,924.73/103,396.50 = 40,933.89/x
  3. Step 3: Cross multiply
    74,924.73x = 103,396.50 × 40,933.89
  4. Step 4: Simplify right side
    74,924.73x = 4,232,420,957.39
  5. Step 5: Solve for x
    x = 4,232,420,957.39/74,924.73
  6. Step 6: Final answer
    x = 56,488.97

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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.