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Finding the Fourth Proportional to 68,161.65, 102,301.55 and 68,004.04

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Solution

The fourth proportional to 68,161.65, 102,301.55 and 68,004.04 is: 102,064.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,161.65 : 102,301.55 = 68,004.04 : x
  2. Step 2: Convert to fraction form
    68,161.65/102,301.55 = 68,004.04/x
  3. Step 3: Cross multiply
    68,161.65x = 102,301.55 × 68,004.04
  4. Step 4: Simplify right side
    68,161.65x = 6,956,917,846.73
  5. Step 5: Solve for x
    x = 6,956,917,846.73/68,161.65
  6. Step 6: Final answer
    x = 102,064.99

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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.