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Finding the Fourth Proportional to 188,819.72, 283,229.53 and 70,500.29

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Solution

The fourth proportional to 188,819.72, 283,229.53 and 70,500.29 is: 105,750.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,819.72 : 283,229.53 = 70,500.29 : x
  2. Step 2: Convert to fraction form
    188,819.72/283,229.53 = 70,500.29/x
  3. Step 3: Cross multiply
    188,819.72x = 283,229.53 × 70,500.29
  4. Step 4: Simplify right side
    188,819.72x = 19,967,762,409.17
  5. Step 5: Solve for x
    x = 19,967,762,409.17/188,819.72
  6. Step 6: Final answer
    x = 105,750.41

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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.