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Finding the Fourth Proportional to 188,763.31, 283,243.34 and 76,526.47

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Solution

The fourth proportional to 188,763.31, 283,243.34 and 76,526.47 is: 114,829.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,763.31 : 283,243.34 = 76,526.47 : x
  2. Step 2: Convert to fraction form
    188,763.31/283,243.34 = 76,526.47/x
  3. Step 3: Cross multiply
    188,763.31x = 283,243.34 × 76,526.47
  4. Step 4: Simplify right side
    188,763.31x = 21,675,612,961.21
  5. Step 5: Solve for x
    x = 21,675,612,961.21/188,763.31
  6. Step 6: Final answer
    x = 114,829.59

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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.