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Finding the Fourth Proportional to 187,842.78, 281,874.74 and 69,596.56

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Solution

The fourth proportional to 187,842.78, 281,874.74 and 69,596.56 is: 104,435.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,842.78 : 281,874.74 = 69,596.56 : x
  2. Step 2: Convert to fraction form
    187,842.78/281,874.74 = 69,596.56/x
  3. Step 3: Cross multiply
    187,842.78x = 281,874.74 × 69,596.56
  4. Step 4: Simplify right side
    187,842.78x = 19,617,512,254.89
  5. Step 5: Solve for x
    x = 19,617,512,254.89/187,842.78
  6. Step 6: Final answer
    x = 104,435.81

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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.