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Finding the Fourth Proportional to 73,874.08, 110,800.68 and 42,181.28

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Solution

The fourth proportional to 73,874.08, 110,800.68 and 42,181.28 is: 63,265.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,874.08 : 110,800.68 = 42,181.28 : x
  2. Step 2: Convert to fraction form
    73,874.08/110,800.68 = 42,181.28/x
  3. Step 3: Cross multiply
    73,874.08x = 110,800.68 × 42,181.28
  4. Step 4: Simplify right side
    73,874.08x = 4,673,714,507.27
  5. Step 5: Solve for x
    x = 4,673,714,507.27/73,874.08
  6. Step 6: Final answer
    x = 63,265.96

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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.