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Finding the Fourth Proportional to 187,792.92, 259,160.72 and 102,910.05

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Solution

The fourth proportional to 187,792.92, 259,160.72 and 102,910.05 is: 142,019.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,792.92 : 259,160.72 = 102,910.05 : x
  2. Step 2: Convert to fraction form
    187,792.92/259,160.72 = 102,910.05/x
  3. Step 3: Cross multiply
    187,792.92x = 259,160.72 × 102,910.05
  4. Step 4: Simplify right side
    187,792.92x = 26,670,242,138.69
  5. Step 5: Solve for x
    x = 26,670,242,138.69/187,792.92
  6. Step 6: Final answer
    x = 142,019.42

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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.