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Finding the Fourth Proportional to 172,891.50, 259,439.34 and 73,045.26

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Solution

The fourth proportional to 172,891.50, 259,439.34 and 73,045.26 is: 109,611.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,891.50 : 259,439.34 = 73,045.26 : x
  2. Step 2: Convert to fraction form
    172,891.50/259,439.34 = 73,045.26/x
  3. Step 3: Cross multiply
    172,891.50x = 259,439.34 × 73,045.26
  4. Step 4: Simplify right side
    172,891.50x = 18,950,814,044.53
  5. Step 5: Solve for x
    x = 18,950,814,044.53/172,891.50
  6. Step 6: Final answer
    x = 109,611.02

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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.