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Finding the Fourth Proportional to 68,968.80, 95,213.28 and 46,426.32

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Solution

The fourth proportional to 68,968.80, 95,213.28 and 46,426.32 is: 64,092.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,968.80 : 95,213.28 = 46,426.32 : x
  2. Step 2: Convert to fraction form
    68,968.80/95,213.28 = 46,426.32/x
  3. Step 3: Cross multiply
    68,968.80x = 95,213.28 × 46,426.32
  4. Step 4: Simplify right side
    68,968.80x = 4,420,402,205.53
  5. Step 5: Solve for x
    x = 4,420,402,205.53/68,968.80
  6. Step 6: Final answer
    x = 64,092.78

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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.