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Finding the Fourth Proportional to 73,201.82, 109,818.16 and 28,224.32

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Solution

The fourth proportional to 73,201.82, 109,818.16 and 28,224.32 is: 42,342.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,201.82 : 109,818.16 = 28,224.32 : x
  2. Step 2: Convert to fraction form
    73,201.82/109,818.16 = 28,224.32/x
  3. Step 3: Cross multiply
    73,201.82x = 109,818.16 × 28,224.32
  4. Step 4: Simplify right side
    73,201.82x = 3,099,542,889.65
  5. Step 5: Solve for x
    x = 3,099,542,889.65/73,201.82
  6. Step 6: Final answer
    x = 42,342.43

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1.5x scale

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.