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Finding the Fourth Proportional to 68,612.45, 102,967.88 and 29,197.26

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Solution

The fourth proportional to 68,612.45, 102,967.88 and 29,197.26 is: 43,816.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,612.45 : 102,967.88 = 29,197.26 : x
  2. Step 2: Convert to fraction form
    68,612.45/102,967.88 = 29,197.26/x
  3. Step 3: Cross multiply
    68,612.45x = 102,967.88 × 29,197.26
  4. Step 4: Simplify right side
    68,612.45x = 3,006,379,818.02
  5. Step 5: Solve for x
    x = 3,006,379,818.02/68,612.45
  6. Step 6: Final answer
    x = 43,816.83

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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.