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Finding the Fourth Proportional to 80,793.55, 121,115.60 and 41,263.53

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Solution

The fourth proportional to 80,793.55, 121,115.60 and 41,263.53 is: 61,857.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,793.55 : 121,115.60 = 41,263.53 : x
  2. Step 2: Convert to fraction form
    80,793.55/121,115.60 = 41,263.53/x
  3. Step 3: Cross multiply
    80,793.55x = 121,115.60 × 41,263.53
  4. Step 4: Simplify right side
    80,793.55x = 4,997,657,194.07
  5. Step 5: Solve for x
    x = 4,997,657,194.07/80,793.55
  6. Step 6: Final answer
    x = 61,857.13

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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.