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Finding the Fourth Proportional to 108,296.92, 149,312.73 and 69,992.02

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Solution

The fourth proportional to 108,296.92, 149,312.73 and 69,992.02 is: 96,500.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,296.92 : 149,312.73 = 69,992.02 : x
  2. Step 2: Convert to fraction form
    108,296.92/149,312.73 = 69,992.02/x
  3. Step 3: Cross multiply
    108,296.92x = 149,312.73 × 69,992.02
  4. Step 4: Simplify right side
    108,296.92x = 10,450,699,584.41
  5. Step 5: Solve for x
    x = 10,450,699,584.41/108,296.92
  6. Step 6: Final answer
    x = 96,500.43

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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.