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Finding the Fourth Proportional to 119,181, 178,771.74 and 50,774.88

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Solution

The fourth proportional to 119,181, 178,771.74 and 50,774.88 is: 76,162.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,181 : 178,771.74 = 50,774.88 : x
  2. Step 2: Convert to fraction form
    119,181/178,771.74 = 50,774.88/x
  3. Step 3: Cross multiply
    119,181x = 178,771.74 × 50,774.88
  4. Step 4: Simplify right side
    119,181x = 9,077,113,645.89
  5. Step 5: Solve for x
    x = 9,077,113,645.89/119,181
  6. Step 6: Final answer
    x = 76,162.42

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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.