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Finding the Fourth Proportional to 72,550.36, 108,759.86 and 25,792.30

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Solution

The fourth proportional to 72,550.36, 108,759.86 and 25,792.30 is: 38,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,550.36 : 108,759.86 = 25,792.30 : x
  2. Step 2: Convert to fraction form
    72,550.36/108,759.86 = 25,792.30/x
  3. Step 3: Cross multiply
    72,550.36x = 108,759.86 × 25,792.30
  4. Step 4: Simplify right side
    72,550.36x = 2,805,166,937.08
  5. Step 5: Solve for x
    x = 2,805,166,937.08/72,550.36
  6. Step 6: Final answer
    x = 38,665.10

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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.