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Finding the Fourth Proportional to 95,957.60, 143,920.12 and 25,821.28

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Solution

The fourth proportional to 95,957.60, 143,920.12 and 25,821.28 is: 38,727.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,957.60 : 143,920.12 = 25,821.28 : x
  2. Step 2: Convert to fraction form
    95,957.60/143,920.12 = 25,821.28/x
  3. Step 3: Cross multiply
    95,957.60x = 143,920.12 × 25,821.28
  4. Step 4: Simplify right side
    95,957.60x = 3,716,201,716.15
  5. Step 5: Solve for x
    x = 3,716,201,716.15/95,957.60
  6. Step 6: Final answer
    x = 38,727.54

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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.