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Finding the Fourth Proportional to 72,992.44, 109,479.24 and 23,077.60

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Solution

The fourth proportional to 72,992.44, 109,479.24 and 23,077.60 is: 34,613.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,992.44 : 109,479.24 = 23,077.60 : x
  2. Step 2: Convert to fraction form
    72,992.44/109,479.24 = 23,077.60/x
  3. Step 3: Cross multiply
    72,992.44x = 109,479.24 × 23,077.60
  4. Step 4: Simplify right side
    72,992.44x = 2,526,518,109.02
  5. Step 5: Solve for x
    x = 2,526,518,109.02/72,992.44
  6. Step 6: Final answer
    x = 34,613.42

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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.