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Finding the Fourth Proportional to 192,980.76, 266,313.06 and 108,096

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Solution

The fourth proportional to 192,980.76, 266,313.06 and 108,096 is: 149,172.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,980.76 : 266,313.06 = 108,096 : x
  2. Step 2: Convert to fraction form
    192,980.76/266,313.06 = 108,096/x
  3. Step 3: Cross multiply
    192,980.76x = 266,313.06 × 108,096
  4. Step 4: Simplify right side
    192,980.76x = 28,787,376,533.76
  5. Step 5: Solve for x
    x = 28,787,376,533.76/192,980.76
  6. Step 6: Final answer
    x = 149,172.26

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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.