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Finding the Fourth Proportional to 53,849.70, 80,851.35 and 40,793.70

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Solution

The fourth proportional to 53,849.70, 80,851.35 and 40,793.70 is: 61,248.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,849.70 : 80,851.35 = 40,793.70 : x
  2. Step 2: Convert to fraction form
    53,849.70/80,851.35 = 40,793.70/x
  3. Step 3: Cross multiply
    53,849.70x = 80,851.35 × 40,793.70
  4. Step 4: Simplify right side
    53,849.70x = 3,298,225,716.50
  5. Step 5: Solve for x
    x = 3,298,225,716.50/53,849.70
  6. Step 6: Final answer
    x = 61,248.73

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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.