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Finding the Fourth Proportional to 173,776.80, 260,665.20 and 73,911.90

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Solution

The fourth proportional to 173,776.80, 260,665.20 and 73,911.90 is: 110,867.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,776.80 : 260,665.20 = 73,911.90 : x
  2. Step 2: Convert to fraction form
    173,776.80/260,665.20 = 73,911.90/x
  3. Step 3: Cross multiply
    173,776.80x = 260,665.20 × 73,911.90
  4. Step 4: Simplify right side
    173,776.80x = 19,266,260,195.88
  5. Step 5: Solve for x
    x = 19,266,260,195.88/173,776.80
  6. Step 6: Final answer
    x = 110,867.85

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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.