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Finding the Fourth Proportional to 89,791.76, 134,687.64 and 27,461.72

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Solution

The fourth proportional to 89,791.76, 134,687.64 and 27,461.72 is: 41,192.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,791.76 : 134,687.64 = 27,461.72 : x
  2. Step 2: Convert to fraction form
    89,791.76/134,687.64 = 27,461.72/x
  3. Step 3: Cross multiply
    89,791.76x = 134,687.64 × 27,461.72
  4. Step 4: Simplify right side
    89,791.76x = 3,698,754,257.14
  5. Step 5: Solve for x
    x = 3,698,754,257.14/89,791.76
  6. Step 6: Final answer
    x = 41,192.58

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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.