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Finding the Fourth Proportional to 168,737.85, 253,111.32 and 73,919.25

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Solution

The fourth proportional to 168,737.85, 253,111.32 and 73,919.25 is: 110,880.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,737.85 : 253,111.32 = 73,919.25 : x
  2. Step 2: Convert to fraction form
    168,737.85/253,111.32 = 73,919.25/x
  3. Step 3: Cross multiply
    168,737.85x = 253,111.32 × 73,919.25
  4. Step 4: Simplify right side
    168,737.85x = 18,709,798,940.91
  5. Step 5: Solve for x
    x = 18,709,798,940.91/168,737.85
  6. Step 6: Final answer
    x = 110,880.87

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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.