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Finding the Fourth Proportional to 71,398.80, 107,025.30 and 41,801.40

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Solution

The fourth proportional to 71,398.80, 107,025.30 and 41,801.40 is: 62,659.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,398.80 : 107,025.30 = 41,801.40 : x
  2. Step 2: Convert to fraction form
    71,398.80/107,025.30 = 41,801.40/x
  3. Step 3: Cross multiply
    71,398.80x = 107,025.30 × 41,801.40
  4. Step 4: Simplify right side
    71,398.80x = 4,473,807,375.42
  5. Step 5: Solve for x
    x = 4,473,807,375.42/71,398.80
  6. Step 6: Final answer
    x = 62,659.42

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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.