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Finding the Fourth Proportional to 68,933.52, 103,352.00 and 35,209.80

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Solution

The fourth proportional to 68,933.52, 103,352.00 and 35,209.80 is: 52,790.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,933.52 : 103,352.00 = 35,209.80 : x
  2. Step 2: Convert to fraction form
    68,933.52/103,352.00 = 35,209.80/x
  3. Step 3: Cross multiply
    68,933.52x = 103,352.00 × 35,209.80
  4. Step 4: Simplify right side
    68,933.52x = 3,639,003,073.55
  5. Step 5: Solve for x
    x = 3,639,003,073.55/68,933.52
  6. Step 6: Final answer
    x = 52,790.04

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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.