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Finding the Fourth Proportional to 48,355.80, 72,455.94 and 40,579.80

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Solution

The fourth proportional to 48,355.80, 72,455.94 and 40,579.80 is: 60,804.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,355.80 : 72,455.94 = 40,579.80 : x
  2. Step 2: Convert to fraction form
    48,355.80/72,455.94 = 40,579.80/x
  3. Step 3: Cross multiply
    48,355.80x = 72,455.94 × 40,579.80
  4. Step 4: Simplify right side
    48,355.80x = 2,940,247,554.01
  5. Step 5: Solve for x
    x = 2,940,247,554.01/48,355.80
  6. Step 6: Final answer
    x = 60,804.44

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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.