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Finding the Fourth Proportional to 72,793.92, 109,201.64 and 37,275.32

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Solution

The fourth proportional to 72,793.92, 109,201.64 and 37,275.32 is: 55,918.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,793.92 : 109,201.64 = 37,275.32 : x
  2. Step 2: Convert to fraction form
    72,793.92/109,201.64 = 37,275.32/x
  3. Step 3: Cross multiply
    72,793.92x = 109,201.64 × 37,275.32
  4. Step 4: Simplify right side
    72,793.92x = 4,070,526,162.15
  5. Step 5: Solve for x
    x = 4,070,526,162.15/72,793.92
  6. Step 6: Final answer
    x = 55,918.49

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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.