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Finding the Fourth Proportional to 74,794, 103,217.67 and 40,803.04

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Solution

The fourth proportional to 74,794, 103,217.67 and 40,803.04 is: 56,309.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,794 : 103,217.67 = 40,803.04 : x
  2. Step 2: Convert to fraction form
    74,794/103,217.67 = 40,803.04/x
  3. Step 3: Cross multiply
    74,794x = 103,217.67 × 40,803.04
  4. Step 4: Simplify right side
    74,794x = 4,211,594,717.72
  5. Step 5: Solve for x
    x = 4,211,594,717.72/74,794
  6. Step 6: Final answer
    x = 56,309.26

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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.