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Finding the Fourth Proportional to 99,791.92, 149,562.56 and 49,885.94

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Solution

The fourth proportional to 99,791.92, 149,562.56 and 49,885.94 is: 74,766.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,791.92 : 149,562.56 = 49,885.94 : x
  2. Step 2: Convert to fraction form
    99,791.92/149,562.56 = 49,885.94/x
  3. Step 3: Cross multiply
    99,791.92x = 149,562.56 × 49,885.94
  4. Step 4: Simplify right side
    99,791.92x = 7,461,068,894.41
  5. Step 5: Solve for x
    x = 7,461,068,894.41/99,791.92
  6. Step 6: Final answer
    x = 74,766.26

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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.