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Finding the Fourth Proportional to 74,948.64, 103,426.04 and 40,958.26

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Solution

The fourth proportional to 74,948.64, 103,426.04 and 40,958.26 is: 56,520.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,948.64 : 103,426.04 = 40,958.26 : x
  2. Step 2: Convert to fraction form
    74,948.64/103,426.04 = 40,958.26/x
  3. Step 3: Cross multiply
    74,948.64x = 103,426.04 × 40,958.26
  4. Step 4: Simplify right side
    74,948.64x = 4,236,150,365.73
  5. Step 5: Solve for x
    x = 4,236,150,365.73/74,948.64
  6. Step 6: Final answer
    x = 56,520.71

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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.