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Finding the Fourth Proportional to 71,355.80, 106,960.80 and 41,758.40

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Solution

The fourth proportional to 71,355.80, 106,960.80 and 41,758.40 is: 62,594.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,355.80 : 106,960.80 = 41,758.40 : x
  2. Step 2: Convert to fraction form
    71,355.80/106,960.80 = 41,758.40/x
  3. Step 3: Cross multiply
    71,355.80x = 106,960.80 × 41,758.40
  4. Step 4: Simplify right side
    71,355.80x = 4,466,511,870.72
  5. Step 5: Solve for x
    x = 4,466,511,870.72/71,355.80
  6. Step 6: Final answer
    x = 62,594.94

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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.