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Finding the Fourth Proportional to 73,324.50, 101,187.90 and 39,790.50

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Solution

The fourth proportional to 73,324.50, 101,187.90 and 39,790.50 is: 54,910.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,324.50 : 101,187.90 = 39,790.50 : x
  2. Step 2: Convert to fraction form
    73,324.50/101,187.90 = 39,790.50/x
  3. Step 3: Cross multiply
    73,324.50x = 101,187.90 × 39,790.50
  4. Step 4: Simplify right side
    73,324.50x = 4,026,317,134.95
  5. Step 5: Solve for x
    x = 4,026,317,134.95/73,324.50
  6. Step 6: Final answer
    x = 54,910.94

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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.