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Finding the Fourth Proportional to 67,471.75, 93,119.23 and 39,177.44

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Solution

The fourth proportional to 67,471.75, 93,119.23 and 39,177.44 is: 54,069.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,471.75 : 93,119.23 = 39,177.44 : x
  2. Step 2: Convert to fraction form
    67,471.75/93,119.23 = 39,177.44/x
  3. Step 3: Cross multiply
    67,471.75x = 93,119.23 × 39,177.44
  4. Step 4: Simplify right side
    67,471.75x = 3,648,173,046.17
  5. Step 5: Solve for x
    x = 3,648,173,046.17/67,471.75
  6. Step 6: Final answer
    x = 54,069.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.