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Finding the Fourth Proportional to 68,884.80, 103,379.04 and 46,645.44

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Solution

The fourth proportional to 68,884.80, 103,379.04 and 46,645.44 is: 70,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,884.80 : 103,379.04 = 46,645.44 : x
  2. Step 2: Convert to fraction form
    68,884.80/103,379.04 = 46,645.44/x
  3. Step 3: Cross multiply
    68,884.80x = 103,379.04 × 46,645.44
  4. Step 4: Simplify right side
    68,884.80x = 4,822,160,807.58
  5. Step 5: Solve for x
    x = 4,822,160,807.58/68,884.80
  6. Step 6: Final answer
    x = 70,003.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.