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Finding the Fourth Proportional to 68,513.70, 102,700.20 and 34,717.26

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Solution

The fourth proportional to 68,513.70, 102,700.20 and 34,717.26 is: 52,040.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,513.70 : 102,700.20 = 34,717.26 : x
  2. Step 2: Convert to fraction form
    68,513.70/102,700.20 = 34,717.26/x
  3. Step 3: Cross multiply
    68,513.70x = 102,700.20 × 34,717.26
  4. Step 4: Simplify right side
    68,513.70x = 3,565,469,483.08
  5. Step 5: Solve for x
    x = 3,565,469,483.08/68,513.70
  6. Step 6: Final answer
    x = 52,040.24

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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.