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Finding the Fourth Proportional to 172,408.67, 237,920.27 and 99,814.62

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Solution

The fourth proportional to 172,408.67, 237,920.27 and 99,814.62 is: 137,742.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,408.67 : 237,920.27 = 99,814.62 : x
  2. Step 2: Convert to fraction form
    172,408.67/237,920.27 = 99,814.62/x
  3. Step 3: Cross multiply
    172,408.67x = 237,920.27 × 99,814.62
  4. Step 4: Simplify right side
    172,408.67x = 23,747,921,340.35
  5. Step 5: Solve for x
    x = 23,747,921,340.35/172,408.67
  6. Step 6: Final answer
    x = 137,742.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.