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Finding the Fourth Proportional to 172,888.43, 259,360.32 and 73,049.59

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Solution

The fourth proportional to 172,888.43, 259,360.32 and 73,049.59 is: 109,586.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,888.43 : 259,360.32 = 73,049.59 : x
  2. Step 2: Convert to fraction form
    172,888.43/259,360.32 = 73,049.59/x
  3. Step 3: Cross multiply
    172,888.43x = 259,360.32 × 73,049.59
  4. Step 4: Simplify right side
    172,888.43x = 18,946,165,038.27
  5. Step 5: Solve for x
    x = 18,946,165,038.27/172,888.43
  6. Step 6: Final answer
    x = 109,586.08

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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.