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Finding the Fourth Proportional to 89,801.46, 123,926.36 and 53,991.97

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Solution

The fourth proportional to 89,801.46, 123,926.36 and 53,991.97 is: 74,509.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,801.46 : 123,926.36 = 53,991.97 : x
  2. Step 2: Convert to fraction form
    89,801.46/123,926.36 = 53,991.97/x
  3. Step 3: Cross multiply
    89,801.46x = 123,926.36 × 53,991.97
  4. Step 4: Simplify right side
    89,801.46x = 6,691,027,731.55
  5. Step 5: Solve for x
    x = 6,691,027,731.55/89,801.46
  6. Step 6: Final answer
    x = 74,509.12

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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.