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Finding the Fourth Proportional to 74,993.12, 103,511.04 and 46,682

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Solution

The fourth proportional to 74,993.12, 103,511.04 and 46,682 is: 64,433.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,993.12 : 103,511.04 = 46,682 : x
  2. Step 2: Convert to fraction form
    74,993.12/103,511.04 = 46,682/x
  3. Step 3: Cross multiply
    74,993.12x = 103,511.04 × 46,682
  4. Step 4: Simplify right side
    74,993.12x = 4,832,102,369.28
  5. Step 5: Solve for x
    x = 4,832,102,369.28/74,993.12
  6. Step 6: Final answer
    x = 64,433.94

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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.