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Finding the Fourth Proportional to 72,625.80, 108,792.90 and 50,464.20

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Solution

The fourth proportional to 72,625.80, 108,792.90 and 50,464.20 is: 75,594.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,625.80 : 108,792.90 = 50,464.20 : x
  2. Step 2: Convert to fraction form
    72,625.80/108,792.90 = 50,464.20/x
  3. Step 3: Cross multiply
    72,625.80x = 108,792.90 × 50,464.20
  4. Step 4: Simplify right side
    72,625.80x = 5,490,146,664.18
  5. Step 5: Solve for x
    x = 5,490,146,664.18/72,625.80
  6. Step 6: Final answer
    x = 75,594.99

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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.