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Finding the Fourth Proportional to 68,555.90, 102,857.16 and 36,968.96

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Solution

The fourth proportional to 68,555.90, 102,857.16 and 36,968.96 is: 55,466.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,555.90 : 102,857.16 = 36,968.96 : x
  2. Step 2: Convert to fraction form
    68,555.90/102,857.16 = 36,968.96/x
  3. Step 3: Cross multiply
    68,555.90x = 102,857.16 × 36,968.96
  4. Step 4: Simplify right side
    68,555.90x = 3,802,522,233.75
  5. Step 5: Solve for x
    x = 3,802,522,233.75/68,555.90
  6. Step 6: Final answer
    x = 55,466.01

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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.