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Finding the Fourth Proportional to 100,802.97, 150,876.41 and 61,174.53

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Solution

The fourth proportional to 100,802.97, 150,876.41 and 61,174.53 is: 91,562.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,802.97 : 150,876.41 = 61,174.53 : x
  2. Step 2: Convert to fraction form
    100,802.97/150,876.41 = 61,174.53/x
  3. Step 3: Cross multiply
    100,802.97x = 150,876.41 × 61,174.53
  4. Step 4: Simplify right side
    100,802.97x = 9,229,793,163.96
  5. Step 5: Solve for x
    x = 9,229,793,163.96/100,802.97
  6. Step 6: Final answer
    x = 91,562.71

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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.