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Finding the Fourth Proportional to 173,073.80, 259,654.53 and 53,136.87

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Solution

The fourth proportional to 173,073.80, 259,654.53 and 53,136.87 is: 79,718.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,073.80 : 259,654.53 = 53,136.87 : x
  2. Step 2: Convert to fraction form
    173,073.80/259,654.53 = 53,136.87/x
  3. Step 3: Cross multiply
    173,073.80x = 259,654.53 × 53,136.87
  4. Step 4: Simplify right side
    173,073.80x = 13,797,229,005.52
  5. Step 5: Solve for x
    x = 13,797,229,005.52/173,073.80
  6. Step 6: Final answer
    x = 79,718.76

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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.