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Finding the Fourth Proportional to 89,159.54, 133,759.80 and 29,189.94

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Solution

The fourth proportional to 89,159.54, 133,759.80 and 29,189.94 is: 43,791.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,159.54 : 133,759.80 = 29,189.94 : x
  2. Step 2: Convert to fraction form
    89,159.54/133,759.80 = 29,189.94/x
  3. Step 3: Cross multiply
    89,159.54x = 133,759.80 × 29,189.94
  4. Step 4: Simplify right side
    89,159.54x = 3,904,440,536.41
  5. Step 5: Solve for x
    x = 3,904,440,536.41/89,159.54
  6. Step 6: Final answer
    x = 43,791.62

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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.