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Finding the Fourth Proportional to 73,452.86, 110,176.74 and 20,862.20

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Solution

The fourth proportional to 73,452.86, 110,176.74 and 20,862.20 is: 31,292.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,452.86 : 110,176.74 = 20,862.20 : x
  2. Step 2: Convert to fraction form
    73,452.86/110,176.74 = 20,862.20/x
  3. Step 3: Cross multiply
    73,452.86x = 110,176.74 × 20,862.20
  4. Step 4: Simplify right side
    73,452.86x = 2,298,529,185.23
  5. Step 5: Solve for x
    x = 2,298,529,185.23/73,452.86
  6. Step 6: Final answer
    x = 31,292.58

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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.