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Finding the Fourth Proportional to 172,491.11, 258,737.88 and 60,170.84

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Solution

The fourth proportional to 172,491.11, 258,737.88 and 60,170.84 is: 90,256.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,491.11 : 258,737.88 = 60,170.84 : x
  2. Step 2: Convert to fraction form
    172,491.11/258,737.88 = 60,170.84/x
  3. Step 3: Cross multiply
    172,491.11x = 258,737.88 × 60,170.84
  4. Step 4: Simplify right side
    172,491.11x = 15,568,475,579.42
  5. Step 5: Solve for x
    x = 15,568,475,579.42/172,491.11
  6. Step 6: Final answer
    x = 90,256.68

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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.