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Finding the Fourth Proportional to 187,673.92, 258,994.20 and 107,099.84

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Solution

The fourth proportional to 187,673.92, 258,994.20 and 107,099.84 is: 147,800.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,673.92 : 258,994.20 = 107,099.84 : x
  2. Step 2: Convert to fraction form
    187,673.92/258,994.20 = 107,099.84/x
  3. Step 3: Cross multiply
    187,673.92x = 258,994.20 × 107,099.84
  4. Step 4: Simplify right side
    187,673.92x = 27,738,237,380.93
  5. Step 5: Solve for x
    x = 27,738,237,380.93/187,673.92
  6. Step 6: Final answer
    x = 147,800.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.