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Finding the Fourth Proportional to 250,093.41, 345,128.92 and 136,916.16

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Solution

The fourth proportional to 250,093.41, 345,128.92 and 136,916.16 is: 188,944.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,093.41 : 345,128.92 = 136,916.16 : x
  2. Step 2: Convert to fraction form
    250,093.41/345,128.92 = 136,916.16/x
  3. Step 3: Cross multiply
    250,093.41x = 345,128.92 × 136,916.16
  4. Step 4: Simplify right side
    250,093.41x = 47,253,724,794.82
  5. Step 5: Solve for x
    x = 47,253,724,794.82/250,093.41
  6. Step 6: Final answer
    x = 188,944.30

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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.