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Finding the Fourth Proportional to 185,958.58, 278,774.34 and 73,717.64

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Solution

The fourth proportional to 185,958.58, 278,774.34 and 73,717.64 is: 110,511.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,958.58 : 278,774.34 = 73,717.64 : x
  2. Step 2: Convert to fraction form
    185,958.58/278,774.34 = 73,717.64/x
  3. Step 3: Cross multiply
    185,958.58x = 278,774.34 × 73,717.64
  4. Step 4: Simplify right side
    185,958.58x = 20,550,585,443.06
  5. Step 5: Solve for x
    x = 20,550,585,443.06/185,958.58
  6. Step 6: Final answer
    x = 110,511.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.