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Finding the Fourth Proportional to 68,862.83, 103,072.77 and 35,537.49

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Solution

The fourth proportional to 68,862.83, 103,072.77 and 35,537.49 is: 53,191.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,862.83 : 103,072.77 = 35,537.49 : x
  2. Step 2: Convert to fraction form
    68,862.83/103,072.77 = 35,537.49/x
  3. Step 3: Cross multiply
    68,862.83x = 103,072.77 × 35,537.49
  4. Step 4: Simplify right side
    68,862.83x = 3,662,947,533.15
  5. Step 5: Solve for x
    x = 3,662,947,533.15/68,862.83
  6. Step 6: Final answer
    x = 53,191.94

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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.