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Finding the Fourth Proportional to 72,295.96, 107,951.83 and 63,791.59

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Solution

The fourth proportional to 72,295.96, 107,951.83 and 63,791.59 is: 95,253.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,295.96 : 107,951.83 = 63,791.59 : x
  2. Step 2: Convert to fraction form
    72,295.96/107,951.83 = 63,791.59/x
  3. Step 3: Cross multiply
    72,295.96x = 107,951.83 × 63,791.59
  4. Step 4: Simplify right side
    72,295.96x = 6,886,418,879.11
  5. Step 5: Solve for x
    x = 6,886,418,879.11/72,295.96
  6. Step 6: Final answer
    x = 95,253.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.