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Finding the Fourth Proportional to 172,200.12, 237,636 and 95,716.80

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Solution

The fourth proportional to 172,200.12, 237,636 and 95,716.80 is: 132,089.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,200.12 : 237,636 = 95,716.80 : x
  2. Step 2: Convert to fraction form
    172,200.12/237,636 = 95,716.80/x
  3. Step 3: Cross multiply
    172,200.12x = 237,636 × 95,716.80
  4. Step 4: Simplify right side
    172,200.12x = 22,745,757,484.80
  5. Step 5: Solve for x
    x = 22,745,757,484.80/172,200.12
  6. Step 6: Final answer
    x = 132,089.09

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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.