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Finding the Fourth Proportional to 178,998.07, 246,955.86 and 110,990.56

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Solution

The fourth proportional to 178,998.07, 246,955.86 and 110,990.56 is: 153,128.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,998.07 : 246,955.86 = 110,990.56 : x
  2. Step 2: Convert to fraction form
    178,998.07/246,955.86 = 110,990.56/x
  3. Step 3: Cross multiply
    178,998.07x = 246,955.86 × 110,990.56
  4. Step 4: Simplify right side
    178,998.07x = 27,409,769,196.68
  5. Step 5: Solve for x
    x = 27,409,769,196.68/178,998.07
  6. Step 6: Final answer
    x = 153,128.85

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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.