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Finding the Fourth Proportional to 68,951.59, 103,374.77 and 35,650.40

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Solution

The fourth proportional to 68,951.59, 103,374.77 and 35,650.40 is: 53,448.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,951.59 : 103,374.77 = 35,650.40 : x
  2. Step 2: Convert to fraction form
    68,951.59/103,374.77 = 35,650.40/x
  3. Step 3: Cross multiply
    68,951.59x = 103,374.77 × 35,650.40
  4. Step 4: Simplify right side
    68,951.59x = 3,685,351,205.28
  5. Step 5: Solve for x
    x = 3,685,351,205.28/68,951.59
  6. Step 6: Final answer
    x = 53,448.39

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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.