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Finding the Fourth Proportional to 123,893.55, 185,847.39 and 35,140.08

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Solution

The fourth proportional to 123,893.55, 185,847.39 and 35,140.08 is: 52,712.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,893.55 : 185,847.39 = 35,140.08 : x
  2. Step 2: Convert to fraction form
    123,893.55/185,847.39 = 35,140.08/x
  3. Step 3: Cross multiply
    123,893.55x = 185,847.39 × 35,140.08
  4. Step 4: Simplify right side
    123,893.55x = 6,530,691,705.10
  5. Step 5: Solve for x
    x = 6,530,691,705.10/123,893.55
  6. Step 6: Final answer
    x = 52,712.12

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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.