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Finding the Fourth Proportional to 108,622.58, 149,890.97 and 60,866.73

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Solution

The fourth proportional to 108,622.58, 149,890.97 and 60,866.73 is: 83,991.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,622.58 : 149,890.97 = 60,866.73 : x
  2. Step 2: Convert to fraction form
    108,622.58/149,890.97 = 60,866.73/x
  3. Step 3: Cross multiply
    108,622.58x = 149,890.97 × 60,866.73
  4. Step 4: Simplify right side
    108,622.58x = 9,123,373,352.59
  5. Step 5: Solve for x
    x = 9,123,373,352.59/108,622.58
  6. Step 6: Final answer
    x = 83,991.50

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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.