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Finding the Fourth Proportional to 95,760.25, 143,767.55 and 81,809.89

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Solution

The fourth proportional to 95,760.25, 143,767.55 and 81,809.89 is: 122,823.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,760.25 : 143,767.55 = 81,809.89 : x
  2. Step 2: Convert to fraction form
    95,760.25/143,767.55 = 81,809.89/x
  3. Step 3: Cross multiply
    95,760.25x = 143,767.55 × 81,809.89
  4. Step 4: Simplify right side
    95,760.25x = 11,761,607,451.07
  5. Step 5: Solve for x
    x = 11,761,607,451.07/95,760.25
  6. Step 6: Final answer
    x = 122,823.48

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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.