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Finding the Fourth Proportional to 48,442.80, 72,620.24 and 43,194

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Solution

The fourth proportional to 48,442.80, 72,620.24 and 43,194 is: 64,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,442.80 : 72,620.24 = 43,194 : x
  2. Step 2: Convert to fraction form
    48,442.80/72,620.24 = 43,194/x
  3. Step 3: Cross multiply
    48,442.80x = 72,620.24 × 43,194
  4. Step 4: Simplify right side
    48,442.80x = 3,136,758,646.56
  5. Step 5: Solve for x
    x = 3,136,758,646.56/48,442.80
  6. Step 6: Final answer
    x = 64,751.80

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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.