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Finding the Fourth Proportional to 86,874.73, 130,228.86 and 27,672.04

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Solution

The fourth proportional to 86,874.73, 130,228.86 and 27,672.04 is: 41,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,874.73 : 130,228.86 = 27,672.04 : x
  2. Step 2: Convert to fraction form
    86,874.73/130,228.86 = 27,672.04/x
  3. Step 3: Cross multiply
    86,874.73x = 130,228.86 × 27,672.04
  4. Step 4: Simplify right side
    86,874.73x = 3,603,698,223.07
  5. Step 5: Solve for x
    x = 3,603,698,223.07/86,874.73
  6. Step 6: Final answer
    x = 41,481.55

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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.